ddxtan sin4t\frac{d}{dx}tan\:sin^4tdxdtansin4t
cos2(x)+tan21+sec(x)+sin2(x)=sec(x)\cos^2\left(x\right)+\frac{\tan^2}{1+\sec\left(x\right)}+\sin^2\left(x\right)=\sec\left(x\right)cos2(x)+1+sec(x)tan2+sin2(x)=sec(x)
4a −3c +7a+9c4a\:-3c\:+7a+9c4a−3c+7a+9c
+4+−1+4+-1+4+−1
(z+15)⋅(z+7)\left(z+15\right)\cdot\left(z+7\right)(z+15)⋅(z+7)
(−101)(33)\left(-101\right)\left(33\right)(−101)(33)
−2(−2x−1)-2\left(-2x-1\right)−2(−2x−1)
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