anonymous
  • anonymous
Please help. Will medal and fan
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Simplify \[\sqrt{\frac{ (1-\cos \theta)(1+\cos \theta) }{ \cos ^{2} \theta}}\]
anonymous
  • anonymous
\[\sqrt{\sin \theta}\] \[\pm \sin \Theta\] \[\pm \cos \Theta\] \[\left| \tan \Theta \right|\]
Vocaloid
  • Vocaloid
hint: (1-cos theta)(1+cos theta) = 1 - cos^2(theta) = sin^2(theta(

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anonymous
  • anonymous
So it'd be A?
Vocaloid
  • Vocaloid
nope, try multiplying out (1-cos(theta))(1+cos(theta)) under the radical and converting to sin^2(theta) remember you've still got cos^2(theta) in the denominator
Vocaloid
  • Vocaloid
|dw:1432863667930:dw|
anonymous
  • anonymous
Okay.. I'm not exactly sure what to do next. I'm on the last question of my assignment and I haven't been very good at this part
Vocaloid
  • Vocaloid
hint: |dw:1432863783112:dw|
anonymous
  • anonymous
So it'd be |dw:1432863826728:dw|
Vocaloid
  • Vocaloid
right, keep going! how can we simplify this down to one expression?
anonymous
  • anonymous
you would divide cos (theta) from sin (theta) correct? I'm not exactly sure what we'd get though
Vocaloid
  • Vocaloid
sin(theta)/cos(theta) = tan(theta) you must memorize this equation, you will need it!
anonymous
  • anonymous
So it would be D. I will thank you :)
Vocaloid
  • Vocaloid
right, good job

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