$13-\left(12-\left(-11\right)\right)$
$2x-3-y+10-y+9y$
$x^2-7x+60$
$\left(-3\right)\:-\:\left(0\:-\:4\:-\:9\right)\:+\:\left(-3\:+\:10\right)\:$
$\left(\sin\left(x\right)+\cos\left(x\right)\right)\cdot\tan\left(x\right)-\sec\left(x\right)$
$27x+90x+76$
$\left(1-cos^2\left(4x\right)\right)^3$
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