$3\sin\left(x\right)-\cos\left(2x\right)+2=0$
$-8ln\left(p+3\right)+6=6$
$\frac{\left(x+5\right)^2-\left(x-5\right)^2}{\sqrt{5x}}$
$\frac{sin^4x-cos^4x}{sin^2x}=2csc^2x$
$\frac{5^{a+1}-5^a}{5^{a-1}}$
$3x^3+18x^2-3x-18$
$4\sin^2\left(a\right)=3$
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