anonymous
  • anonymous
Which of the following are solutions to the equation sinx cosx =-1/4? Check all that apply. A.7pi/12+npi B.11pi/12+npi C.7pi/12+npi/2 D.7pi/6+npi
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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arindameducationusc
  • arindameducationusc
what is n?
anonymous
  • anonymous
I'm not sure, just part of the problem
arindameducationusc
  • arindameducationusc
Ok got it... wait.

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freckles
  • freckles
use sin(2x)=2sin(x)cos(x) this is the double angle identity divide 2 on both sides you have 1/2*sin(2x)=sin(x)cos(x) replace sin(x)cos(x) with 1/2*sin(2x)
arindameducationusc
  • arindameducationusc
I agree with @freckles You will get x=pi/12 Then you can solve for n. Did you get it? Or you need more help
anonymous
  • anonymous
I got it. The answer was A and B
arindameducationusc
  • arindameducationusc
Congrats @melisa1m

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