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August 21, 2014

August 21, 2014

Posted by **mtd** on Wednesday, April 9, 2008 at 1:37pm.

answer is (a cosx) and I don't know how to get there

- Math (Trigonometry) -
**Reiny**, Wednesday, April 9, 2008 at 1:59pm√(a^2 -u^2) where u = asinx

= √(a$ - a^2(sinx)^2)

= √(a^2(1 - (sinx)^2)

= a√(cosx)^2

= a cos x

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