$\left(m+17\right)^2$
$539.28-92.654$
$\frac{1+tan\:\theta\:}{1+cot\:\theta\:}=tan\theta\:$
$0=4x^2-1$
$\int\frac{x+43}{x^2-4x-21}dx$
$2^2+30ab+169b^2$
$sin^2x\cdot\left(2sin\left(2x\right)\right)-2sinxcosx\left(1-cos\left(2x\right)\right)=0$
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