$\int x^2\:sin^2\left(3x\right)dx$
$77^2-22^2$
$\frac{dy}{dx}=\frac{\left(\cos\left(x\right)\right)}{\left(4\sin\left(x\right)+11\right)^2}$
$216\:-\:5$
$49a^4-121$
$49x^2-49$
$5\left(3\:-18\:15\:-1\:5\right)$
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