Simplify.

1.2cos^2 4x-1

sin4xcos4x

2. 1-4sin^2x+4sin^4x

The answers to the first is 2cot8x and the second is cos^22x. I would like to see the step by step process.

Help would be appreciated thanks!

Printable View

- Jul 24th 2007, 10:24 AMandrewsxdouble angle problems
Simplify.

1.__2cos^2 4x-1__

sin4xcos4x

2. 1-4sin^2x+4sin^4x

The answers to the first is 2cot8x and the second is cos^22x. I would like to see the step by step process.

Help would be appreciated thanks! - Jul 24th 2007, 10:30 AMtopsquark
And what was wrong with Jhevon's answer? If you have a question about his answer, please respond in the original thread.

And please don't double post. See rule #1 here.

-Dan - Jul 24th 2007, 10:34 AMandrewsx
Sorry, when I logged into the forum, I didn't know where to find my thread from yesterday and any replies that may have accrued. I should check my email from now on so that i can see who replied. :(

- Jul 24th 2007, 10:40 AMtopsquark