- #1

- 31

- 0

## Homework Statement

The ∫sec

^{4}x

## Homework Equations

## The Attempt at a Solution

Im not entirely sure how to do this. At first I was thinking u sub but then theres nothing for u'.

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- Thread starter ibaforsale
- Start date

- #1

- 31

- 0

The ∫sec

Im not entirely sure how to do this. At first I was thinking u sub but then theres nothing for u'.

- #2

FeDeX_LaTeX

Gold Member

- 437

- 13

What trig identities do you know involving se(x)?

- #3

- 9,557

- 767

## Homework Statement

The ∫sec^{4}x

## Homework Equations

## The Attempt at a Solution

Im not entirely sure how to do this. At first I was thinking u sub but then theres nothing for u'.

Try writing it as$$

\int \sec^2x(1+\tan^2 x)~dx$$and look for a ##u## substitution.

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