1) cos(40+x)=3sin(50+x) find x for 0<x<360 in degrees 2) 8sinxcosx=3 solve x for 0<x<2pi answer in radians thanks!
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1. and so and . The result is 2.
please can you explain where did 2cos40cosx and +4sin40sinx come from?
Last edited by snowball; Sep 16th 2008 at 01:29 AM. Reason: I just understood where it came from, thanks again!
Originally Posted by snowball please can you explain where did 2cos40cosx and +4sin40sinx come from? He added like terms
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