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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Prove the identity matrix is unique
- askmathquestions
- · Replies 69 ·
Query about how the domain of a binomial coefficient was calculated
- Snowman2
- · Replies 2 ·
Very silly question on whether the domain of ##log_{10}(x²)## = ##2log_{10}(x)##
- tellmesomething
- · Replies 2 ·
Equation that is defined as an identity
- RChristenk
- · Replies 4 ·
Correct statement related to common tangents of circles
- songoku
- · Replies 6 ·
discussion about grade calculator
- tayyaba
- · Replies 2 ·
Solve simultaneous equations with trigonometric functions
- atky1224
- · Replies 12 ·
Find the values of a and b to get max/min of certain expression
- songoku
- · Replies 21 ·
Find ##\tan \theta ## in the form of ##a+b\sqrt {2}##
- chwala
- · Replies 5 ·
Find the sides of the right triangle so that their sum is minimized
- MatinSAR
- · Replies 32 ·
Find area of the shaded part in the given diagram
- chwala
- · Replies 2 ·
Rationalize the denominator: ##\sqrt{\dfrac{1}{2x^3y^5}}##
- RChristenk
- · Replies 6 ·
Express ##x^3+y^3## in terms of ##m## and ##n##
- brotherbobby
- · Replies 17 ·
How long is the longest piece of the given Rope?
- chwala
- · Replies 24 ·
Solving a system with 2h+2b=33 and hb=54
- paulb203
- · Replies 3 ·
Is Triangle Formed by Centroids of Equilateral Triangles Equilateral?
- Hill
- · Replies 5 ·
Number of Miles In One Light Year
- felizgu
- · Replies 11 ·
How Far Can A Person See?
- felizgu
- · Replies 2 ·
Three points on the Complex plane
- Hill
- · Replies 6 ·
Solve the equation : ##x^4+12x^3+2x^2+25=0##
- chwala
- · Replies 24 ·
Find suitable value of Median and Range for given box-whisker plot
- chwala
- · Replies 6 ·
NHST statistics for % of students late to class
- tomwilliam
- · Replies 15 ·
Reflector design for 6mm straight tube lamp with 100mm beam width
- Harry Logtenberg
- · Replies 3 ·
Condition for coplanarity of two lines
- Aurelius120
- · Replies 14 ·
How do I find the circumference and Area of this figure?
- arhzz
- · Replies 24 ·
Find the position vector of ##Q##
- chwala
- · Replies 4 ·
Factorise a six-termed quadratic in ##a## and ##x##
- brotherbobby
- · Replies 15 ·
Solve the given word problem: Selecting 2 numbers from a watch face
- chwala
- · Replies 4 ·
Conjugate vs Complex Conjugate
- rstor
- · Replies 9 ·
Solve the given inequality
- chwala
- · Replies 5 ·
Solve ##\dfrac{3x-6}{5-x}+\dfrac{11-2x}{10-4x}=3\dfrac{1}{2}##
- RChristenk
- · Replies 3 ·
Equal intercept on the three axes
- arham_jain_hsr
- · Replies 6 ·
A combinatorial probability question
- tstl
- · Replies 18 ·
Work out the amount that Arjun paid in rent in 2019
- chwala
- · Replies 6 ·
Solve ##\sqrt{\dfrac{x}{y}}+\sqrt{\dfrac{y}{x}}=4\dfrac{1}{4} \cdots##
- RChristenk
- · Replies 10 ·
Why Is My Argument Calculation for Complex Number Incorrect?
- MatinSAR
- · Replies 14 ·
Approximation used in physics explanation
- tellmesomething
- · Replies 8 ·
Does the Modified Collatz Conjecture Always End in 1, 5, or 17?
- Dries vanlandschoot
- · Replies 10 ·
Why Does Solving y+3=3√(y+7) Yield Extraneous Solutions?
- RChristenk
- · Replies 8 ·
Where does the mark scheme get these numbers from?
- TheePhysicsStudent
- · Replies 2 ·
Show that if ##x>1##, ##\log_e\sqrt{x^2-1}=\log_ex-\dfrac{1}{2x^2}-##
- RChristenk
- · Replies 8 ·
Combinatorics for number of distinct terms in multinomial expansion
- zxen
- · Replies 2 ·
Logarithmic Series question for finding ##\log_e2##
- RChristenk
- · Replies 10 ·
Finding the domain (and range) of a logarithmic function
- brotherbobby
- · Replies 11 ·
Find the ##r^{th}## term of ##(a+2x)^n##
- RChristenk
- · Replies 3 ·
Solve for all angles x: cos(2x) + cos(x) = 0, where 0<x<2pi
- Ascendant0
- · Replies 25 ·
Find the sum of the coefficients in the expansion ##(1+x)^n##
- RChristenk
- · Replies 5 ·
Solve using complete the square vs. quadratic formula
- paulb203
- · Replies 11 ·
Show that ##^{n+1}C_r=^nC_r+^nC_{r-1}##
- RChristenk
- · Replies 14 ·
Solve the problem involving the cubic function
- chwala
- · Replies 12 ·
In how many ways can 5 prizes be given away to 4 boys?
- RChristenk
- · Replies 16 ·
Figuring out Natural Deduction problem but can't find mistake
- krob
- · Replies 3 ·
How do I fix this surd inside a surd?
- lioric
- · Replies 3 ·
Distributing negative signs in logarithms
- RChristenk
- · Replies 2 ·
Solving ln(x + √(x² + 1)) = 2ln(2 + √3)
- chwala
- · Replies 2 ·
[Statistics] Calculate the percentage
- LokLe
- · Replies 4 ·
Find the value of ##\sqrt[5]{0.00000165}##
- RChristenk
- · Replies 4 ·
Factorize a number in a different base
- RChristenk
- · Replies 1 ·
Calculate the magnitude of driving force on the car
- chwala
- · Replies 15 ·
In what base is 647 the square of 25?
- RChristenk
- · Replies 4 ·
Calculate acceleration and speed of block
- chwala
- · Replies 3 ·
Calculate the value of ##θ## and ##X##
- chwala
- · Replies 6 ·
Basic Simultaneous Equations Problem
- paulb203
- · Replies 9 ·
State the domain and range for a given function
- brotherbobby
- · Replies 7 ·
How long does it take the car to move 30 m from rest?
- chwala
- · Replies 7 ·
Work out an estimate for the total number of ponies in the forest
- paulb203
- · Replies 28 ·
Find the time taken by the truck to move 1 metre
- chwala
- · Replies 3 ·
Combinations with identical and unidentical objects
- tellmesomething
- · Replies 16 ·
Number of ways of arranging 7 characters in 7 spaces
- Aurelius120
- · Replies 8 ·
What Are the Values of A, B, and C for the Given Expression?
- chwala
- · Replies 19 ·
Factor an equation second order in ##x,y## with other variables
- brotherbobby
- · Replies 14 ·
Solving x^1.729 - x - 6 = 0 with Newton's method
- chwala
- · Replies 5 ·
Given value of vectors a,b, b.c and a+(b×c), Find (c.a)
- Aurelius120
- · Replies 5 ·
Why Does Expanding (13-8)^99 Not Yield the Same Remainder as 5^99 Modulo 13?
- tellmesomething
- · Replies 7 ·
A,B,C are 3 points with position vectors a,b,c Find length of median
- Aurelius120
- · Replies 18 ·
Find an irrational number that satisfies the given inequality
- chwala
- · Replies 22 ·
To find the range of a given ##\sin## function
- brotherbobby
- · Replies 15 ·
Find the roots of the given cubic equation
- chwala
- · Replies 13 ·
Why is 3 = a x (1)^2 x (-3)^2 in this step of the solution?
- TheePhysicsStudent
- · Replies 3 ·
How to find the range of a function with square roots?
- arham_jain_hsr
- · Replies 23 ·
Solve the given problem involving conditional probability
- chwala
- · Replies 32 ·
Coin problem - all possible amounts from a set of coins
- musicgold
- · Replies 7 ·
Solving Number Triangle Puzzle with Trial and Error
- musicgold
- · Replies 21 ·
Complete the parametric equation for the line where the planes cross
- MP97
- · Replies 7 ·
Find the domain and the range of ##f-3g##
- chwala
- · Replies 3 ·
What Is the Correct Angle Between Vectors a and c?
- nafisanazlee
- · Replies 4 ·
Multi-event probability puzzle - is my answer correct?
- musicgold
- · Replies 7 ·
Where is my mistake in this three-case probability problem with spins?
- songoku
- · Replies 7 ·
Struggling with a geometry puzzle - area of garden path
- musicgold
- · Replies 11 ·
Converting number base of decimals
- RChristenk
- · Replies 11 ·
Find ##b-a## which satisfies following limit
- MatinSAR
- · Replies 12 ·
What is ##7 \times 7## in base ##7##?
- RChristenk
- · Replies 13 ·
1st year high school geometry proof
- Iamconfused123
- · Replies 14 ·
Finding vector component perpendicular to B = 3i + 4j
- brotherbobby
- · Replies 20 ·
LCM question -- how many packages of burgers and cheese slices to buy?
- paulb203
- · Replies 13 ·
Finding the direction of infinite limits
- Weightlifting
- · Replies 10 ·
Efficient Logarithmic Calculations for 0.3048 without a Calculator
- RChristenk
- · Replies 8 ·
Find the relation between 2 variables
- Debdut
- · Replies 7 ·
Finding coincident angle between 2 equally spaced sets
- Telosian 7
- · Replies 1 ·
Changing the subject of a formula
- paulb203
- · Replies 16 ·