i need some help resolvong over the interval [0 degrees and 360 degrees]

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- Apr 14th 2009, 06:22 PMdarkmoon123help: solving equation (cos^2x)(sin^2x)=0
i need some help resolvong over the interval [0 degrees and 360 degrees]

- Apr 14th 2009, 06:49 PMmr fantastic
- Apr 14th 2009, 06:49 PMdarkmoon123
I think i have the answer but i am not sure, can someone check this:

square root both sides square root both sides

{90 degrees, 0 degrees} ? - Apr 14th 2009, 06:54 PMmr fantastic
- Apr 15th 2009, 05:40 AMstapel
If you want to use this method, instead of the one explained earlier, you'll need to use what you learned back in algebra about

**solving quadratic equations**.

In particular, if , then , so . And so forth.

(Wink)