$cos\:\left(\:0-b\right)$
$14+16+14+17+19+14+15+15+18+18$
$\frac{1}{2}\ln\left(\frac{1+x}{1-x}\right)$
$0.6898435683363658\cdot1.0133\cdot10^5$
$\left(1-\frac{1}{x}\right)^{\frac{-1}{3}}$
$\left(4x+1\right)dx\:+\left(5y\:+\:7\right)dy$
$49x^2-+4x+1$
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