$\int\frac{\sin\left(x\right)}{\left(7+\cos\left(x\right)\right)^5}dx$
$16x^2-144$
$2\cos\left(3x\right)=\sqrt{3}$
$64x^2+x+64$
$x^2-x-3;\:x=0$
$x+1\ge3$
$6z=49-z$
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