$0=\frac{3}{1-x}$
$x-5\cdot x+5$
$\csc\left(x\right)^2+sec\left(x\right)^2=\frac{sin\left(x\right)^2}{cos\left(x\right)^2}$
$\frac{sen\:w}{sen\:w-cos\:w\:tan\:\frac{w}{2}}=1+cos\:w$
$a=x-7x$
$\left(-82.02\right)\cdot\left(-9.41\right)$
$q^2+12q+5=0$
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