1cos(x)−cos(x)1+sin(x)=1cos2x\frac{1}{\cos\left(x\right)}-\frac{\cos\left(x\right)}{1+\sin\left(x\right)}=\frac{1}{\cos^2x}cos(x)1−1+sin(x)cos(x)=cos2x1
1+x−x2 yz−x3 yz1+x-x^2\:yz-x^3\:yz1+x−x2yz−x3yz
∫((2x+1)x2+x+3)dx\int\left(\frac{\left(2x+1\right)}{x^2+x+3}\right)dx∫(x2+x+3(2x+1))dx
−(4−3(−5+2)2)-\left(4-3\left(-5+2\right)^2\right)−(4−3(−5+2)2)
7x3\sqrt[3]{7x}37x
∫x3e−5dx\int x^3e^{-5}dx∫x3e−5dx
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