$cot\left(35\right)-1=0$
$tanx\:+sec\:x\:-1$
$25u^2+2=15x$
$6a-2a^2+8a-12a^4$
$3x^3-6x^5+9x^2$
$2csc^2x+11cscx=6$
$\left(\frac{2}{8}a\:+\frac{4}{d}\right)$
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