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New posts in algebra-precalculus
Is there an explicit formula that gives the value of $\sqrt{2+\sqrt{2+\sqrt{2+\cdots}}}$ for $n$ square roots? [duplicate]
calculus
algebra-precalculus
trigonometry
substitution
nested-radicals
Simplifying $\frac{\pi(1-\cos(\pi x))\cos(\pi x)-\pi\sin^2(\pi x)}{(1-\cos(\pi x))^2}$ to $\frac\pi{\cos\pi x-1}$
algebra-precalculus
trigonometry
Is there a shorter/faster way to show these two expressions are equal?
algebra-precalculus
How can we simplify the expression $P+\sqrt{P^2+\sqrt{P^4+\sqrt{ P^8+\cdots)}}}$?
algebra-precalculus
Solve $\lfloor \sqrt x +\sqrt{x+1}+\sqrt{x+2}\rfloor=x$
algebra-precalculus
diophantine-equations
alternative-proof
ceiling-and-floor-functions
When is $ 999\cdots$ a perfect square?
algebra-precalculus
elementary-number-theory
discrete-mathematics
square-numbers
If $x=\sqrt{{\sqrt{5}+1\over \sqrt{5}-1}}$ What is the value of $5x^2-5x-1?$
algebra-precalculus
Solve an equation with linear and exponential functions, $x=10^{x/10}$ [closed]
algebra-precalculus
exponential-function
Solving $x^2+\frac{81x^2}{(9+x)^2}=40$ [duplicate]
algebra-precalculus
Sum of angles under which a fixed line segment is seen from points situated on another line segment
calculus
geometry
algebra-precalculus
trigonometry
triangles
Solving $7[x]+23\{x\}=191$
algebra-precalculus
ceiling-and-floor-functions
fractional-part
Solutions to the equation $a^2x-b^2x^2=c^2$
abstract-algebra
algebra-precalculus
number-theory
field-theory
How to solve $e^x=x$?
algebra-precalculus
Proof without using induction [duplicate]
calculus
algebra-precalculus
induction
Find all the prime factors of $1000027$
algebra-precalculus
prime-numbers
factoring
elementary-number-theory
prime-factorization
how to prove that $1^x+2^x+3^x+4^x+\cdots+N^x$ will never sum to a prime number except $1^x+2^x$?
prime-numbers
proof-explanation
algebra-precalculus
Prove that polynomial of degree $4$ with real roots cannot have $\pm 1$ as coefficients (IITJEE)
calculus
algebra-precalculus
polynomials
quadratics
Find a such that $ax^{17}+bx^{16}+1$ is divisible by $x^2-x-1$.
algebra-precalculus
polynomials
roots
quadratics
common-root
Factor $(a^2+2a)^2-2(a^2+2a)-3$ completely
algebra-precalculus
factoring
Intuitive explanation of $(a^b)^c = a^{bc}$
algebra-precalculus
exponentiation
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