Question

In the integration of tan^4, why should we break it to tan^2 (tan^2) rather (tan^2)^2

Answer 1

because...your next step is to change tan^2 into sec^2 - 1

Answer 2

and also because \[\int (\tan ^2)^2\]
that's not integrable...

Answer 3

does that help?

Answer 4

yeah ofcourse dear..:D

Answer 5

wonderful

Answer 6

you're just a brilliant person..:)

Answer 7

can i ask where r u from?