$-\left(\frac{2}{5}\right)^0$
$36x^2+122+121$
$x ^ { 2 } - 7 x + 6 \leq 0$
$\int a^{5nx}dx$
$\frac{cos\left(x\right)}{sec\left(x\right)-1}+\frac{\cos\left(x\right)}{1+sec\left(x\right)}=2\cot\left(x\right)$
$( n ^ { 2 } - 1 ) ( n ^ { 2 } + 7 ) ( n ^ { 4 } - 6 n ^ { 2 } - 7 )$
$\left(m+2\right)^4-10\left(m+2\right)^2+9$
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