$\sin x+3=2-\sin x$
$t5\:en\:x^1^2-y^{12}-x-y$
$\left(2a^2b^3+3x^3y\right)\left(2a^2b^3-3x^3y\right)$
$\lim_{x\to0}\left(\frac{x^3}{sin^2\left(x\right)}\right)$
$\frac{1-\sin^2a}{\cot a}=\sin\cos a$
$3.26d+9.75d-2.65d$
$\left(-12-32-45-69-87\right)-\left(-78-95-41-23-65\right)$
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