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OpenStudy (anonymous):
Please help!!!!!!!! Write the expression as the sine, cosine, or tangent of an angle. cos 107° cos 42° + sin 107° sin 42° sin 65° cos 65° cos 149° sin 149°
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OpenStudy (anonymous):
cos65
OpenStudy (anonymous):
Thank you!!!!!!!!!!!!!!!!!!!!!!!!!
OpenStudy (anonymous):
lol. glad to hear
OpenStudy (anonymous):
this is the subtraction angle formula for cosine, so your real job (other than to recognize it) is to subtract \(107-42\)
OpenStudy (anonymous):
ohhhh okay i get thank you :))
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