Question

integral. im very confused.

Answer 1

i leu u as my tan

Answer 2

\(sec^n\theta=sec^{n-1}\theta *sec\theta\) Got this part??

Answer 3

yes yes the power rule

Answer 4

so, the integrand is \(sec^{n-1}\theta *sec\theta tan\theta\) right?

Answer 5

now let \(u = sec \theta \rightarrow du = sec\theta tan\theta d\theta\) ok then?

Answer 6

yes yes the derivative of tan =)

Answer 7

the integral becomes
\[\int u^{n-1}du\] It's quite easy now, right?

Answer 8

yes =)

Answer 9

ok

Answer 10

i got 1/n sec ^n theta + c. i think i made a mistake?