what is the formula cos(90+α)
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1
Hey,
(cos 90°+ α)= -sinα
HOPE IT HELPS:-))
(cos 90°+ α)= -sinα
HOPE IT HELPS:-))
Answered by
0
90 + theta is in 2nd quad where cos is - ve.
whenever odd multiple of pie/2 is there convert sin to cos and vice versa
whenever odd multiple of pie/2 is there convert sin to cos and vice versa
so ans is - sin theta
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