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Precalculus Mathematics Homework Help Forum
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Free pre-calculus mathematics homework help from qualified mentors. Math courses prior to calculus homework. Please use the template when requesting help and show your work.
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Title
Tan[arctan(2/3) + arccos(8/17)]
Jul 29, 2011
Replies
2
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5K
Limits of log sin equal to 0/1/infinity?
Jul 29, 2011
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Trig should I start by squaring both side?
Jul 29, 2011
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Solving a Trigonometric Equation: Sec Theta
Jul 29, 2011
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Find domain of f(x)=x^(5/3)-5x^(2/3)
Jul 29, 2011
Replies
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Jul 29, 2011
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Jul 29, 2011
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Transformation of expoential to hyperbolic
Jul 28, 2011
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Jul 28, 2011
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24
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1) A1 A2 be two events, show that P (A1 ∩ A2) ≤ P (A1)P
Jul 28, 2011
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6
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Highest common factor question
Jul 28, 2011
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3
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Poisson probability distribution
Jul 28, 2011
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13
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Comparing Weight Gain in Rats: An Analysis of Diets A & B
Jul 28, 2011
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37
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Probability of X > Y in Normal Distributions & Sampling Bottle Weights
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Synthetic and Long Division for (9x^4 - x^2 - 6x + 2) / (3x - 1)
Jul 28, 2011
Replies
6
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2K
Approximation involving an exponential function
Jul 27, 2011
Replies
4
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2K
How to Prove Trig Identity m) Sin^2 x / sin^2 x + cos x^2 = tan^2 x / 1 + tan^ x
Jul 27, 2011
Replies
24
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4K
PROVE: The altitude of a triangle are concurrent.
Jul 27, 2011
Replies
4
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22K
Trigonometric Identity Problems
Jul 26, 2011
Replies
11
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12K
Algebra Inverse Function Problem
Jul 26, 2011
Replies
3
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What is the value of n in the identity sin^3xsin3x=\sum^n_{m=0}{}^nC_mcosmx?
Jul 25, 2011
3
Replies
126
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14K
How does electromagnetic feild made?
Jul 25, 2011
Replies
1
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1K
Can you solve for x and y in this complex numbers equation?
Jul 25, 2011
Replies
2
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Simultaneous equation with Complex Numbers
Jul 25, 2011
Replies
6
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8K
Simplifying the Derivative of the Square Root of a Sum Containing a Square Root
Jul 25, 2011
Replies
4
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Cos theta=pi/2 hint pi/2 is not an angle.
Jul 24, 2011
Replies
7
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4K
Mathematical induction problem.
Jul 24, 2011
Replies
6
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2K
An elusive trig proof I can't seem to get
Jul 23, 2011
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4
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2K
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Jul 23, 2011
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3
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2K
How to find x if we know the median amount?
Jul 22, 2011
Replies
3
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4K
Formula for the alternating sum of the first n numbers.
Jul 22, 2011
Replies
3
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11K
What is the change in horizontal distance from low tide to high tide?
Jul 22, 2011
Replies
19
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7K
$\sqrt{(-1)^2}$: Is it -1 or 1?
Jul 22, 2011
Replies
1
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1K
What Are the Radian Measures of the Supplement and Complement of Pi/8?
Jul 22, 2011
Replies
2
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3K
Terminal Arm Point P: Finding sin, cos, and tan for Θ in Standard Position
Jul 21, 2011
Replies
2
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S(t) for 100 cigarette smokers w/5 min cigarette/30 min
Jul 21, 2011
Replies
2
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2K
Domain range intervals; if you can
Jul 21, 2011
Replies
3
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2K
What are the Eigenvectors of a 3x3 Matrix with Eigenvalues 6 and 2?
Jul 20, 2011
Replies
16
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5K
Fibonacci Sequence Ratios: F_n+1/F_n
Jul 20, 2011
Replies
1
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2K
How can I solve two challenging GRE math problems without a calculator?
Jul 20, 2011
Replies
6
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3K
Help with solving equations for x
Jul 20, 2011
Replies
9
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2K
What are the eigenvalues of the 3x3 matrix [2 2 1; 1 3 1; 2 2 2]?
Jul 19, 2011
Replies
4
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3K
Arithmetric Sequence word problem. Thanks
Jul 19, 2011
Replies
1
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2K
I thought it was similar triangles
Jul 19, 2011
Replies
24
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4K
Sum of n Terms of 7/(1.2.3) - 17/(2.3.4) + Series
Jul 19, 2011
Replies
12
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3K
What is the Inverse Function of a Dropped Object's Height Over Time?
Jul 19, 2011
Replies
19
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3K
Conversion of Irrational roots for cubic functions and higher
Jul 19, 2011
Replies
26
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5K
Finding the Inverse of a Function: g(x) = x/3 - 5
Jul 18, 2011
Replies
2
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1K
How to Solve for the Width and Domain/Range of a Sloping Roof?
Jul 18, 2011
Replies
23
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4K
Tanθ = 5/12 , with θ in Quadrant 1, find sin2θ?
Jul 18, 2011
Replies
6
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4K
How Do You Determine the Domain and Range for the Reflection of a Function?
Jul 18, 2011
Replies
1
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2K
What is wrong with the following calculation using infinite series?
Jul 18, 2011
Replies
7
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11K
Gre Math prep geometry problem 8C
Jul 18, 2011
Replies
10
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5K
How Do You Find the Inverse of a Radical Function?
Jul 18, 2011
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6
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7K
How to Label Axes on a Polar Plot?
Jul 18, 2011
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3
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2K
Transforming quadratic functions
Jul 17, 2011
Replies
2
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3K
Graphing Quadratic Functions: Domain, Range, and Factoring Help
Jul 17, 2011
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2
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2K
Solving for X Intercepts: How to Find the Real Answers for x^3-3x^2+3
Jul 17, 2011
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7
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3K
Domain/range of functions inverse
Jul 17, 2011
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14
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4K
How Do You Solve the Equation tan(x) + sec(x) = 1?
Jul 17, 2011
Replies
2
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12K
Solving Trig Equations Without a Prefix
Jul 17, 2011
Replies
18
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3K
Trig problem, let sinA= -3/5 wiht A in Quad. 3 find Sin2A
Jul 17, 2011
Replies
3
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3K
Degree radian conversion issue
Jul 17, 2011
Replies
10
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2K
Solving Fourth Degree Equation: Get Answers Now
Jul 17, 2011
Replies
17
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How do you do a proof on this?
Jul 16, 2011
Replies
7
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2K
Describe how the grah of each of the following functions
Jul 16, 2011
Replies
5
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3K
How to improve the 3 x 3 matrix before Inverse
Jul 16, 2011
Replies
2
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2K
Finding the diagonal of an irregular quadrilateral
Jul 15, 2011
Replies
1
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28K
Consistency of a set of equations
Jul 15, 2011
Replies
16
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4K
How to Solve Geometry Questions 3 and 4 Correctly?
Jul 15, 2011
Replies
1
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1K
Proving Symmetric Operators are Equal: A Functional Analysis Challenge
Jul 15, 2011
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3
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How Do You Calculate Workforce Growth and Total Wages Over Time?
Jul 15, 2011
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9
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Hi, How do I find the height of the triangle , the triangle is set
Jul 14, 2011
Replies
9
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3K
Please explain the graph of int(x)
Jul 14, 2011
Replies
1
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10K
Quadratics Homework Help: Solving for Specific Points in Time
Jul 14, 2011
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3
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How Do You Isolate 'v' in a Projectile Range Equation with Initial Height?
Jul 14, 2011
Replies
17
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Proving 0!=1: An Analysis of the Fundamental Mathematical Concept
Jul 13, 2011
Replies
30
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73K
Are Significant Figures Really That Important?
Jul 13, 2011
Replies
2
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2K
Calculating an elliptical surface and formulating this surface in 3d
Jul 13, 2011
Replies
1
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2K
Formation of the General Equation for a Power Series
Jul 13, 2011
Replies
3
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2K
Why does this expression not have a vertical asymptote?
Jul 13, 2011
Replies
12
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5K
Trig proof, I am getting a neg instead of pos.
Jul 12, 2011
Replies
2
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2K
Vector field calculations- dumb question
Jul 12, 2011
Replies
3
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3K
How Does the Binomial Theorem Explain the Middle Term of (a+b)^4?
Jul 12, 2011
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2
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1K
What is the cost when 150 units are produced?
Jul 12, 2011
Replies
48
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8K
Solve for x log3 (x-2) + log3 (x-4) = 7
Jul 12, 2011
Replies
41
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8K
Interesting Absolute Value problem
Jul 12, 2011
Replies
6
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3K
Trigonometry Help: Proving 1-cos@ / sin@ = tan(@/2)
Jul 12, 2011
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Trig question -sin pi/4 , give the exact value?
Jul 12, 2011
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4
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18K
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Jul 11, 2011
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5K
Algebraic expression for triangles within polygons
Jul 11, 2011
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4
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3K
Given that the equation [tex]z^2+(p+iq)z+r+is=0,[/tex] where
Jul 10, 2011
Replies
3
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2K
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Jul 10, 2011
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5
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Jul 10, 2011
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1
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7K
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Jul 9, 2011
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6
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3K
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Jul 9, 2011
Replies
9
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3K
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Replies
14
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3K
[tex](ax+by)^2 \leq ax^2+by^2[/tex] for every a,b which satisfy
Jul 9, 2011
Replies
4
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2K
How to Solve Exponential Equations with Different Bases?
Jul 8, 2011
Replies
24
Views
5K
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