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5:06
wyzant.com
If cos α = 0.945 and cos β = 0.817 with both angles’ terminal rays in Quadrant-I, find the values of (a) cos ( β − α ) = (b) sin ( β − α ) = | Wyzant Ask An Expert
Answer by James C. to If cos α = 0.945 and cos β = 0.817 with both angles’ terminal rays in Quadrant-I, find the values of (a) cos ( β − α ) = (b) sin ( β − α ) =
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