$-1^9$
$2\left(r+3\right)+3\left(r+7\right)-10$
$4\cos\left(x\right)=1+2\cos\left(x\right)$
$\int_{\pi}^{\frac{\pi\:}{2}}\left(\sin\left(2x\right)\right)dx$
$12x+4+24x^2$
$\lim_{x\to\infty}\:1+1^{2n+1}$
$-10b+b$
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