Finding $y=\sqrt{5+\sqrt{5+\sqrt{5+\sqrt{5 + \ldots}}}}$
97315
Assuming convergence of the following series, find the value of $\sqrt{6+\sqrt{6+\sqrt{6+...}}}$
69172
$y'=$ ${-x+\sqrt{(x^2+4y)}}\over 2$ , $y(2)=-1$
3621
How can I show that $y'=\sqrt{|y|}$ has infinitely many solutions?
73716
Let $x,y,z>0$ and $x+y+z=1$, then find the least value of ${{x}\over {2-x}}+{{y}\over {2-y}}+{{z}\over {2-z}}$
66457
Series expansion of $xy'=y$
94427
Finding x given y from an interpolating function
8027
How to prove $\sqrt{x + y} \le \sqrt{x} + \sqrt{y}$?
7898
Finding square root without using sqrt function?
5595
$x^y = y^x$ for integers $x$ and $y$
59856
Find $x,y$ given $\gcd(x,y)$ and ${\rm lcm}(x,y)$
88189
Finding all integer solutions of $5^x+7^y=2^z$
119691
$5^{x}+2^{y}=2^{x}+5^{y} =\frac{7}{10}$ Work out the values of $\frac{1}{x+y}$
146753
Find $x$ such that $(x^2 + 4x + 3)^x + (2x + 4)^x = (x^2 + 4x + 5)^x$
49999
Express $y$ from $\ln(x)+3\ln(y) = y$
101394
Please explain the logic behind $d(xy) = y(dx) + x(dy)$
115213
How to simplify $\sqrt[3]{7+5\sqrt{2}}+\sqrt[3]{7-5\sqrt{2}}$
27809
Find the function equation $f(x+f(y)+yf(x))=y+f(x)+xf(y)$