Mathematics, 13.01.2021 01:00 bryanna0105
I need help 54 points
Answers: 2
Mathematics, 21.06.2019 22:00, dest8860
Which sum or difference identity would you use to verify that cos (180° - q) = -cos q? a.) sin (a -b) = sin a cos b – cos a sin b b.) cos (a -b) = cos a cos b – sin a sin b c.) cos (a -b) = cos a cosb + sin a sin b d.) sin (a + b) = sin a cos b + cos a sin b
Answers: 1
I need help 54 points...
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