$12\sin^2\left(x\right)-\sin\left(x\right)-1=0$

$3\sec^2\left(y\right)-3\cot^2\left(\frac{\pi}{2}-y\right)=3$

$\int\frac{4x^2-2x+1}{4x^3}dx$

$4\left(5^3\right)+2\left(-3^2\right)-5\left(-1^4\right)-3$

$\int_0^{\frac{\pi}{2}}2cos\left(x\right)\sqrt{1+3sin\left(x\right)}dx$

$\left(4m-n\right)\left(4m+n\right)$