$\left(d^2+\left(2f-c\right)\right)^2$

$1-2+3-4+5-6+7-8+9-10$

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

$\frac{\sin\left(a+b\right)}{\cos\left(a\right)\sin\left(b\right)}=\tan\left(a\right)\cot\left(b\right)+1$

$\int\frac{7x-11}{\left(x^2+2x-5\right)}dx$

$\log\left(x-2\right)-\log\left(2x-3\right)=3$

$\tan^240$