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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Hey I posted in homework help but now it's gone
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Homework Help Guidelines for Students and Helpers
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Binomial Theorem - determine the term with...
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Roots of a polynomial mixed with a trigonometric function
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Difference between -3² and (-3)² ?
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Matrices: if AB=A and BA=B, then B^2 is equal to?
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Are the following statements true? (1) a∈{{a},{a,b}} and (2) b∈{{a},{a,b}} true?
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Find the smallest value of angle ##α + β ##
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An inequality involving ##x## on both sides: ##\sqrt{x+2}\ge x##
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Solve the problem that involves ##\cos^{-1} x + \cos^{-1}y##
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Solve the given problem involving: ##\tan^{-1} (2x+1)+ \tan^{-1} (2x-1)##
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Solve the problem that involves diameter of the Bullseye
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Partial Fraction Decomposition
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Prove that the given inverse trigonometry equation is correct
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Show that the ratio ##x+y:x-y## is increased by subtracting ##y##
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I don't get a step with this quadratic question
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Solve these simultaneous equations
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Solve the given equations
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Solve the given simultaneous equations
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Negative sign in cube root
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Solve for ##u## and ##v## in the given equations
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Solve the given simultaneous equations in x^2, x and y
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Solve the simultaneous equations involving x, y, and their squares
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Simplifying (b-a)/(a-b)
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Question about this technique for solving simultaneous equations
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Number of ways to partition n persons and probability to form n groups
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Applications of algebraic expressions
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Probability using combinations or alternatives
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How many positive integers x satisfy this logarithmic inequality?
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Basic probability question (1 boy + 2 girls of a group of 7)
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Find the total number of ways of coloring the eight regions
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Question about permutation formula -- How to use the formula when r = 0 ?
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Help on circle theorems
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Find the area of the quadrilateral OCBAO
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How many turns of cable?
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Solve the problem that involves iteration
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Rounding Errors; to nearest 10cm
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Solve the given problem involving functions: f(x)=|ax-b| and y=f(x)+c
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Solve the given problem involving logarithms
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Prove this variation: If a+b ∝ a-b, prove that a^2+b^2 ∝ ab
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Proving trig identities -- Is the method related to the unit circle?
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Derivative of a piecewise function
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Solving for a, b, and c in this equation for $ revenue for a circus
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Solve the given problem that involves binomial theorem
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Ideal Straight Line Fit for a Temperature Sensor Output
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Baffled by old school exam
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Finding compound interest formula
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Help please with De Moivre's Theorem (raising a complex number to a power)
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Solve the given problem that involves Trigonometry
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Find the possible values of angle ##∠ADB##
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Determine the position vector of ##C##
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Prove that these three ratios are equivalent
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Adding square roots of ##i## leading to different answers!
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Stumped by the algebraic steps in this equation
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Vector addition and subtraction
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Calculating Radius & Water Depth of a Spherical Bowl
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Evaluating the angle theta using inverse sin
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Finding the solution to system of 3 equations with 3 unknowns
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Complex numbers confusion (how they got this expression in orange to become -1)
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Conceptual question on equations of the form ##x=ay^2+by+c##
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Form a Linear Equation for the Value of this equipment during the 10 years it will be in use
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Is it possible to find a number x such that 5 < x < 1?
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If 1=5, 2=25, 3=125,4=1880, 5=?
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Number of lines equidistant from four points on a plane
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Chance of Selecting Twins from Group of 30 [Solved!]
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Plotting points in three-dimensional space
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Trying to understand the property of absolute value inequality
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Using inverses to solve systems of equations
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"Calculating Korifice Value in Cranes TP 410M, Problem 7-12
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Solve 2 Triangle Problem: Calculate Exact Value of x
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Is it ok to assume matrices A and B as identity matrix?
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Find the GCD of the given complex numbers (Gaussian Integers)
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Solving Equations: Does Squaring Make False True?
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Proving inverse of a 2 x 2 matrix is really an inverse
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Help with inverse matrix's
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Problems in manipulating these 4 radical equations
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Show that ##f(x)=2',1',2'## in the irreducible Polynomial
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Transformations to both sides of a matrix equation
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Is there a rule that states that I should not divide in this scenario?
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Deriving algebraic definition of cross product
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Free variables for a matrix in REF
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Gauss-Jordan Elimination algorithm steps
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Finding vectors parallel to a given vector
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Identifying the type of expression
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Finding the value of lambda so that two lines are parallel
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Exploring the Math of Glucose Polymers: Understanding 6^n
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Interchanging x and y for inverse function
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Solving an Asymmetrical Inequalities Problem: Seeking Light
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Cannot understand what ##(mod ~ \pi)## means in the given formula
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Is ##f(x)=2^{x}-1## considered an exponential function?
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Trig Identities - Pre-calculus in a Nutshell - Section 4 Question 1
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3x3 matrix with complex numbers
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Inequality question -- Need help getting started...
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Inequalities: x^2 > 900
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Calculating the distance from a point to a plane
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Complex fraction question
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Solving a nested logarithmic equation
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Find all the ways of writing N into x^2-y^2
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!Solving Plane 3x + 2y -z = 4
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Find the range of values of a + b
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Help please with this Trigonometric equation
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Find the coordinates of D which lies on the vector BC
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