$b^2=47$

$\frac{dy}{dx}=2sin\left(x+y\right)$

$\left(4m+8\right)\:\left(4m-3\right)$

$\lim_{x\to\pi}\left(\csc\left(x\right)\cdot\ln\left(\sqrt{\frac{1+\sin\:\left(x\right)}{1-\sin\:\left(x\right)}}\right)\right)$

$\frac{\sin\left(x\right)}{\cot\left(\frac{\pi}{2}-x\right)}$

$x^2-6x+25<11$

$\lim_{x\to-\infty}\left(\frac{4x^2+x^2+5}{3x^5+x^3-x}\right)$