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.
Trig Identity Problem: Solve sin \theta = -5/13 & cos \theta = -(√194)/13
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Find equation of line through origin which is perpendicular
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Am I overcomplicating a simple algebraic expression?
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Solve Trig Problem w/o Formulas: sin(3pi/2 + a), cos(3pi/2 - x)
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Complex Trigonometric Solutions
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Solving for theta in a Trigonometric Equation
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Is Trial and Error the Only Method to Solve Cubic Equations?
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Is 1/sec 20° Equivalent to Cosine in Sin² 20° + 1/sec² 20° = 1?
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Calculating Sec and Cos of 50 Degrees: Homework Solution
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What is the identity of a3 + b3 + c3 in math?
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Is ArcTan(-1) equal to both 7pi/4 and 3pi/4?
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Understanding Logarithms: Solving Equations and Creating Tables of Values
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How did the teacher get the third zero?
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Solving Mathematical Problems: Find the Answers Here
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Using the theory of simultaneous equations
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Give the exact value using the Half Angle Formula
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Word problems. This is not for homework, but is from a math book.
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Proving Trig Statements: cos^2 + cos^4 + ... + cos^30 ≈ 15cos^11.38211
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Solve Substitution Problem: x^2+2y^2=9, x-y+3=0 with x=(-1,-3) and y=(2,0)
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Sine and cosine functions Zeros
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How to Find the Cartesian Equation for a Plane Parallel to the x-axis?
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Probability of Diarrhoea and Rash After New Drug Trial | Math Help & Solution
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Solving a 2x2 Matrix: Can You Help?
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Co-efficient of Friction (Limiting Friction)
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Solving x^2 + 2y = 9 w/ Sub Method
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Prove that (1+tanx)^2-2tanx=1/(1-sinx)(1+sinx)
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Synthetic division with complex number
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Cubic/cubic ->intercepts and asymptote(s)
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Prooving a statement with a Lemma
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Proving Inequality for Complex Numbers with Absolute Value Constraints
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Restrictions of denominators with negative exponents.
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Uncovering the Mystery of the Lambert W-Function in Solving Equations
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Easy Limits Q. Homework: Show $\lim_{x\to2}\frac{x+1}{x+2}=\frac{3}{4}$
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How Do You Formulate a Vector Equation for a Plane Given Points and Directions?
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Advanced Functions,Exponential Functions
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When the planes are perpendicular, what is k?
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Advanced Functions: Construct Table & Limitations
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Trigonometric Equations find all solutions
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Cube Roots of a Complex Function Am I doing something wrong?
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How to Convert Radical Expressions to Exponential Form
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Convert from plane equation to scalar equation
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Advanced Functions,Exponential Functions
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Help with an algebra factoring problem.
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Solve Equation of Line with Slope of 1¼
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Need a little guidance - Limits
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Finding scalar equation of a line with a vector and a point given
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Solve Sin pi/12= 1/4 (√6 - √2)
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Help Solving Trig Equation: Cos70°cos20°-sin70°sin20°
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Find the partial fraction decomposition of the rational function.
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What kind of mathematics/pattern is this?
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Solving Trig Problem: Tan^2(x) - Sec^2(x)
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Check my solution please (Sine and cosine functions)
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Flipping H/A Fraction for Canceling Out A's
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How can you use a table of values to graph y=cosx-2?
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Scientific notebook/maple help
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Simple log/exponential equation.
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Proving Geometric Fact: u+v Perpendicular to u-v Using Dot Product
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How to Find λ in a Triangle with Given Vectors OA, OB, P, and Q?
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Matrix word aplication problem
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The question about diagonalization
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Matrix X and Y Solutions for Equations XA=B and AY=B
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Euler's path same as Hamiltonian cycle
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Internet Infrastructure Security
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Proving tan(45+x)=cot(45-x) in Degrees
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How do I use induction to prove n<2^n?
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Find equation of the plane that passes through a given point and is perpen. to
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Deal or No Deal - Odds of a better deal and most likely deal?
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What is the Correct Order of Weights on a Balanced Scale?
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Why are Cosine and Secant Even Functions?
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Trig Project - When math is not math.
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Solving a system on linear equations
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Is the point on the line? Test with vector equation [x,y] = [2,-3] + t[4,7]
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Solving Vector Magnitude Problem: Find OC
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Simplifying Trig Ratio Identities: Does This Answer Make Sense?
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Complex Number Sine Wave Problem
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Can Mathematical Induction Prove the Primality of 2n-1 and 2n+1?
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Arithmetic progression homework
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Series Summation: Solving for r^2 with (2r+1)^3 and (2r-1)^3 Equations
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Converting Package Prices from Francs to Euros
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Solving a Circle Problem: Finding Radius and Center | Math Forum Help
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Proving Trig Ident: sin(4s)/4 = cos^3(s)*Sin(s) - sin^3(s)*cos(s)
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Geometric Progression: Finding the Outstanding Loan Amount after Each Year
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How do I simplify this trigonometry expression?
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Graphing Polar Curves: Inner Loop with a Twist | Homework Help
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Help drawing a function, finding its zero, local max/min
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What is the next five numbers is this sequence:
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Solving a Probability Problem with Bayes Theorem
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How can trigonometric identities be used to simplify complex expressions?
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Trig identities, what does this mean?
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Quick question about infinity symbol
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What is the significance of the A004730 sequence in mathematics?
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Partial Fractions: Solving Simple Linear Equations
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Another challenging logarithmic question
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Solving Trig Problems: Finding x for (sinx)^4 & (cosx)^4
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Finding Equation of Smallest Circle Containing 3 Circles
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Simple Identity Proof for Homework | Equations & Solution Attempt
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What Is the Probability of Drawing All White Balls in This Experiment?
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Understanding Matrix Multiplication: Solving Homework Problems (5) and (24)
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Proving that matrix A is unitary and find its inverse.
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How to solve for x in this trig jumble?
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