$\ln\sqrt[4]{\frac{\left(4x-2\right)}{\left(3x+1\right)}}$

$\left(7b+6\right)^2$

$-6+\left(-3\right)+8+9-5-\left(-6\right)$

$\int\left(x-4\right)\sqrt{7-2x}dx$

$1.2r^2+2.3s+1+3.8r^2-4.5s-10$

$\frac{\left(8sin\left(x\right)+tan\left(x\right)\right)}{tan\left(x\right)}$

$\csc\left(a\right)+\cot\left(a\right)=\cot\left(\frac{a}{2}\right)$