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OpenStudy (juan1857):
Use a half angle identity to find the exact value of each function: sin105
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OpenStudy (mathmale):
If you want to find sin 105, I'd suggest you use the addition identity for the sine function: sin (a+b) = sin a cos b + cos a sin b. Think: 60 + 45 = 105.
OpenStudy (juan1857):
ok thanks
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