$\log_{13}\left(x\right)=\log_{13}\left(6\right)+\log_{13}\left(5\right)-\log_{13}\left(2\right)$
$\cos^2x=3\sin^2x-4\sin x$
$-25y^2-50y=0$
$\frac{tan\:x\:\left(sin\:x\right)}{sec\left(x\right)}=1+cosx$
$8-64+8+1$
$m^6+27$
$\int csc^3\:8t\:dt$
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