SOLUTION: If cosα=0.173 and cosβ= 0.432 with both angles’ terminal rays in Quadrant-I, find the values of
cos(α+β)=
cos(α-β)=
(Your answers should be accura
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Question 1112994: If cosα=0.173 and cosβ= 0.432 with both angles’ terminal rays in Quadrant-I, find the values of
cos(α+β)=
cos(α-β)=
(Your answers should be accurate to 4 decimal places.
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
=0.173 , we calculate sin =0.9849
=0.432 we can calculate Sin = 0.9019
=
plug the values in the identity
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