- #1

chwala

Gold Member

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## Homework Statement

[/B]##∫ (1/sin 2x)dx##

## Homework Equations

## The Attempt at a Solution

let ##u = sin 2x, ⇒ du= 2cos2x dx##

or

##sin 2x= 2 sin x cos x##...[/B]

**or**

##∫ (1/sin 2x)dx = ∫( csc 2x)dx##

##∫ (1/sin 2x)dx = ∫( csc 2x)dx##