trig: find exact sol'n: 2sin^2x=2+cosx, tan^2x-tanx=0

ShanikaC

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Apr 20, 2006
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how do you find exact solutions in the interval

2sin^2x= 2+cos x

tan^2x-tanx=0
 
Re: trig

ShanikaC said:
how do you find exact solutions in the interval

2sin^2x= 2+cos x
change sin<sup>2</sup>x to 1 - cos<sup>2</sup>x and solve the resulting quadratic



tan^2x-tanx=0
try factoring the left side and set each factor = 0 and solve
 
thank you skeeter I am being home
schooled and my teacher dont know what she is doing.
 
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