$1-2sin^2x=2sinxcosx$
$2+4-6+230-5$
$\int\frac{ab}{7}dx$
$-5-5-\left(-5\right)+5-\left(-5-5\right)$
$\sqrt{\left(x+2\right)\left(x+3\right)\left(x+4\right)\left(x+5\right)+1}$
$xy'+4y=0$
$60x^3y^3-100x^7y^4+80x^3y^5$
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