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StudyGurl14
 one year ago
Help with trignometric equations! MEDAL
StudyGurl14
 one year ago
Help with trignometric equations! MEDAL

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StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0dw:1441828891570:dw How do I eliminate one of the functions so I can solve for x?

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1start by making the subsitution sin^2 = 1  cos^2

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2sin^2 x+ cos^2 = 1 solve for sin^2 x then replace sin^2x with that

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1then rewrite the equation with all terms on one side and then you'll be solving a quadratic equation

StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0Okay, thanks. I'll try that.

StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0I'm stuck @Nnesha @campbell_st dw:1441829434455:dw

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.2i guess typo a(b+c)=ab+ac

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1dw:1441829240020:dw

StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0still stuck dw:1441829563686:dw

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1then is \[2\cos^2(x) + \cos(x) = 0\] factor this

StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0Oh, okay. I get the rest. Thanks!

StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0dw:1441829644394:dw

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1and don't forget the other solution

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1dw:1441829404062:dw

StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0dw:1441829749290:dw

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.1that's correct... so you now just need the angles...

StudyGurl14
 one year ago
Best ResponseYou've already chosen the best response.0thanks! I got it from here.
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