$csc^4b-cot^4b=cot^2+csc^2b$
$8ec^{2}\theta-5=-1$
$\int\theta\cos\text{\thetad}\theta$
$\int\left(\sqrt{x}\left(x^2+x\right)\right)dx$
$8a-b+a+4a-b$
$4+37uv-4uv-33uv$
$y=x-\frac{a}{x}$
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