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OpenStudy (anonymous):
Use sum and difference identities to find the exact value of sin 75 degrees. If someone could walk me through it that would be great. I have the equation but I don't know if im doing it right.
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OpenStudy (anonymous):
sin 75 =sin(60 +15)=sin60cos15=cos60sin15 further sin15=sin(45-30) cos15=cos(45-30)
OpenStudy (amistre64):
what have you tried? that way we can tell if you are doing it right or not :)
OpenStudy (anonymous):
Um well im not really sure these pictures are all they have given me on how to do this.
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