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New posts in algebra-precalculus
Time, Speed, Distance problem
algebra-precalculus
arithmetic
Min $P=\frac{x^5y}{x^2+1} +\frac{y^5z}{y^2+1} +\frac{z^5x}{z^2+1}$
algebra-precalculus
inequality
contest-math
a.m.-g.m.-inequality
Finding the minimum value of $\sqrt { \frac { a }{ b+c } } +\sqrt [ 3 ]{ \frac { b }{ c+a } } +\sqrt [ 4 ]{ \frac { c }{ a+b } }$
algebra-precalculus
inequality
In Triangle, $\sin\frac A2\!+\!\sin\frac B2\!+\!\sin\frac C2\!-\!1\!=\!4\sin\frac{\pi -A}4\sin\frac{\pi -B}4\sin\frac{\pi-C}4$
algebra-precalculus
trigonometry
triangles
Comparing Powers of Different Bases
algebra-precalculus
inequality
logarithms
exponentiation
What book would you recommend to significantly improve my problem solving skills?
algebra-precalculus
reference-request
problem-solving
book-recommendation
Your average speed must be twice that of the first lap
algebra-precalculus
Finding an equation for a circle given its center and a point through which it passes
algebra-precalculus
circles
Being ready to study calculus
calculus
algebra-precalculus
reference-request
trigonometry
self-learning
Basic Mathematics. Trouble with proof, powers and odd numbers.
algebra-precalculus
exponentiation
If for an integer $n$, $\frac{f_1(n)}{f_2(n)}=\frac 47$, then $n$ is?
algebra-precalculus
functions
prove that $\lfloor x\rfloor\lfloor y\rfloor\le\lfloor xy\rfloor$
algebra-precalculus
inequality
ceiling-and-floor-functions
Why multiply first?
algebra-precalculus
How to evaluate $ \sum\limits_{n=1}^{\infty} \left( \frac{H_{n}}{(n+1)^2.2^n} \right)$
calculus
real-analysis
sequences-and-series
algebra-precalculus
harmonic-numbers
$f(g(h(x)))=0$ has $8$ real roots
algebra-precalculus
roots
quadratics
What are the rules for factorial manipulation?
algebra-precalculus
factorial
Find $n$ and $k$ if $\:\binom{n\:}{k-1}=2002\:\:\:\binom{n\:}{k}=3003\:\:$
algebra-precalculus
elementary-number-theory
binomial-coefficients
Find all real solutions for $x$ in $2(2^x−1)x^2+(2^{x^2}−2)x=2^{x+1}−2$.
algebra-precalculus
polynomials
exponential-function
Formula for the $1\cdot 2 + 2\cdot 3 + 3\cdot 4+\ldots + n\cdot (n+1)$ sum
algebra-precalculus
summation
If $f: \mathbb{N} \to \mathbb{N}$ and $\forall x \in \mathbb{N},\,(f \circ f )(x) = x^{4}$, is $f$ polynomial?
algebra-precalculus
polynomials
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