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April 21, 2015

April 21, 2015

Posted by **Amir** on Monday, January 23, 2012 at 9:12am.

- math -
**bobpursley**, Monday, January 23, 2012 at 9:56amI bet if you used

cos^2 Y= 1-Sin^2 Y

you would end up with a quadratic equation. If you are stuck, let x=SinY, and solve it that way.

- math -
**Amir**, Monday, January 23, 2012 at 9:59amthanks

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