$\int\frac{\sec\left(x\right)^2}{\tan\left(x\right)^2+1}dx$
$4x\:+\:4=5x+3$
$\frac{\csc\left(x\right)-1}{\cot\left(x\right)}$
$\int3sin\left(lnx\right)dx$
$\int_{0.5}^1\left(\frac{\sqrt{3-x^2}}{x}\right)dx$
$\int\frac{-5x-11}{x^2+6x+9}dx$
$8+4\cdot1+2\cdot1-1$
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