$\lim\:_{x\to\:\infty\:}\left(cos\left(\frac{6}{x}\right)\right)^2$
$\int\frac{y^2}{\left(y+9\right)^8}dy$
$3-2x>x-6$
$-\sin\left(a\right)-\sin\left(b\right)$
$25x^2y^2+5x+4x$
$2.6r\:+\:1.3\:=\:-16.9$
$3\:\left(4a^2\right)\left(-4b\right)$
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