$\int\cos\left(3x\right)\sqrt{\sin\left(3x\right)}dx$
$-\left(-19\right)+2$
$\lim_{x\to a}\left(\frac{cosx-cosa}{sin\left(x-a\right)}\right)$
$\int le^{-x}dx$
$2\left(3t+1\right)^3-2\left(3t+1\right)^2-\left(3t+1\right)+10$
$\frac{48^4}{8^4}$
$-5c^2+1+1$
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