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September 1, 2015

Homework Help: Trig Equation

Posted by sqleung on Saturday, March 1, 2008 at 1:52am.

Solve for x (exact solutions):

sin x - sin 3x + sin 5x = 0

-¶– °‹ x °‹ 0

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Now, using my graphics calculator, I discovered that the following equation has 5 solutions. I have managed to come up with 3 of them but I'm having trouble finding the other 2. My 3 answers are:

0, -¶–/6, -5¶–/6

I need the answers to be EXACT like above so any help would be appreciated. Thankyou.

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