Posted: 1/10/2016 10:39:13 AM EDT
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Find all values of x such that sin 2x = sin x and 0 = x = 2p.
Also, please explain how  or refer a good video etc.
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First, recognize that sin2x is a double angle. If you use your double angle identities, you can work through this.
Manipulate the right side of that equation a little bit, and see what you come up with. You may start by writing it 2*cosx*sinx. That may make it a bit clearer what you have to do with it. |
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Quoted:
Trig is the easiest math class I've ever taken.
I suck at everything else, but for some reason I could do trig well. Quoted:
Quoted:
Fuck trig I got a D in that shit Trig is the easiest math class I've ever taken.
I suck at everything else, but for some reason I could do trig well. That's because trig is easy, and trig relates to the real world, just like Calculus. |