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New posts in algebra-precalculus
5 pears and 1 apple cost as much as 2 pears and 2 apples. If each apple costs $0.75,find the total cost of 100 pears and 450 apples.
algebra-precalculus
word-problem
Why does $n$-time differentiation of product have the same structure as raising sum to $n$th power?
algebra-precalculus
derivatives
square root / factor problem $(A/B)^{13} - (B/A)^{13}$
algebra-precalculus
Why is the Fundamental Theorem of Arithmetic so important?
algebra-precalculus
elementary-number-theory
prime-numbers
arithmetic
If $\frac{n^2}{3} < xy \leq n^2 - 5$, then does it follow that $n > \max(x,y)$?
algebra-precalculus
inequality
upper-lower-bounds
About the property $(a^m)^n=a^{mn}$ when $a<0$
algebra-precalculus
exponentiation
Quadratic inequality puzzle: Prove$ |cx^2 + bx + a| ≤ 2$ given $|ax^2+bx+c| ≤ 1$
algebra-precalculus
inequality
recreational-mathematics
absolute-value
substitution
Intuitive proof of $\sum_{k=1}^{n} \binom{n}{k} k^{k-1} (n-k)^{n-k} = n^n$
algebra-precalculus
summation
binomial-coefficients
recreational-mathematics
binomial-theorem
Find the latus rectum of the Parabola
calculus
algebra-precalculus
geometry
algebraic-geometry
conic-sections
I've noticed some relationships with cosine and square root.
calculus
real-analysis
algebra-precalculus
trigonometry
square-numbers
Show that $(a+b+c)^3 = a^3 + b^3 + c^3+ (a+b+c)(ab+ac+bc)$
algebra-precalculus
Evalute $\sqrt[n]{\frac{20}{2^{2n+4}+2^{2n+2}}}$
algebra-precalculus
exponentiation
Beginner questions about how functions work
algebra-precalculus
How to find center of an arc given start point, end point, radius, and arc direction?
geometry
algebra-precalculus
circles
Algebraic Identity $a^{n}-b^{n} = (a-b) \sum\limits_{k=0}^{n-1} a^{k}b^{n-1-k}$
algebra-precalculus
Is$\frac{\sqrt{a}}{\sqrt{b}}$ the same as $\sqrt{\frac{a}{b}}$?
algebra-precalculus
functions
arithmetic
education
radicals
Show that this function is one to one
algebra-precalculus
Is the area of a triangle a function of its perimeter?
algebra-precalculus
Why is the word associative used to represent the concept of the associative property?
algebra-precalculus
terminology
math-history
What's the correct definition of "conjugate", and do we identify them?
algebra-precalculus
terminology
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