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New posts in algebra-precalculus
Prove that $a^4+b^4+1\ge a+b$.
algebra-precalculus
inequality
symmetric-polynomials
a.m.-g.m.-inequality
Can someone show me why this factorization is true?
algebra-precalculus
factoring
An equation, where the solution does not exist, but on solving the equation we got a solution. why this is happening?
algebra-precalculus
arithmetic
radicals
Finding two numbers given their sum and their product
algebra-precalculus
systems-of-equations
How to solve for $x$ in the equation, $4\sqrt{x-3} - \sqrt{6x-17} = 3$, with two square root terms?
algebra-precalculus
Trigonometric equality: $\frac{1 + \sin A - \cos A}{1 + \sin A + \cos A} = \tan \frac{A}{2}$
algebra-precalculus
trigonometry
Solving $\sin\theta -1=\cos\theta $
algebra-precalculus
trigonometry
Find $x$ in $4^x+6^x=9^x$
algebra-precalculus
quadratics
exponentiation
Finding double root. An easier way?
calculus
algebra-precalculus
polynomials
roots
7th class question my daughter asked and need answer if possible
algebra-precalculus
How to get inverse of formula for sum of integers from 1 to n? [duplicate]
algebra-precalculus
summation
How do you construct a function that is continuous over $(0,1)$ whose image is the entire real line?
calculus
algebra-precalculus
Examples of fallacies in arithmetic and/or algebra [closed]
algebra-precalculus
big-list
Show that $(a+b)^7-a^7-b^7=7ab(a+b)(a^2+ab+b^2)^2$
algebra-precalculus
contest-math
How do 3 fractions having respectively $(a-x)^2$ , $(a+x)^2$ and $(a-x)$ as denominators add up to a fraction having $(a^2 - x^2)^2$ as denominator?
algebra-precalculus
polynomials
soft-question
fractions
Can the product of two polynomials result in a single term? [closed]
algebra-precalculus
polynomials
Why does $3^{16} \times 7^{-6}$ become $\frac{3^{16}} {7^{6}}$?
algebra-precalculus
exponentiation
Is it possible to solve this equation by hand?
algebra-precalculus
Proof of Inequality using AM-GM
algebra-precalculus
inequality
You roll a die until you get a $5$, what is the expected value of the minimum value rolled?
probability
algebra-precalculus
expected-value
dice
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