$\int2x\cdot\cos\left(-3x\right)dx$
$\left(4x+11\right)^2$
$10-5x^2;\:x=5$
$2\sin^2\theta$
$\lim_{x\to\left(0\right)}\left(\frac{secx}{cscx}\right)$
$\frac{\left(1+\frac{1}{x}\right)}{4}$
$\left(\frac{1}{8}a-\frac{1}{2}b\right)^2$
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