$\int \frac{e^x(1+x)}{\cos ^2\left(x e^x\right)} d x=$
Answer & explanation
Correct answer: option 2
Put x ex = t ∴ I = ∫sec2t dt = tan t + c = tan(x ex) + c;
Hence (2) is the correct answer.
$\int \frac{e^x(1+x)}{\cos ^2\left(x e^x\right)} d x=$
Correct answer: option 2
Put x ex = t ∴ I = ∫sec2t dt = tan t + c = tan(x ex) + c;
Hence (2) is the correct answer.