SOLUTION: Good day! Can you help me with this problem?
Express the following in terms of its cofunction:
cos (20°+A)
Thank you very much!
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-> SOLUTION: Good day! Can you help me with this problem?
Express the following in terms of its cofunction:
cos (20°+A)
Thank you very much!
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Question 981223: Good day! Can you help me with this problem?
Express the following in terms of its cofunction:
cos (20°+A)
Thank you very much! Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! .
cos(x)=sin(90-x)
.
For x=(20°+A), in terms of cofunction:
cos(20°+A)=sin(90-(20°+A))
cos(20°+A)=sin(70-A)
