Use the given information to find the exact value of the expression.
sin α =21/29 , α l...
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Mathematics, 10.10.2019 17:30 dragpack70
Use the given information to find the exact value of the expression.
sin α =21/29 , α lies in quadrant iv, and cos β =-4/11 , β lies in quadrant iii find cos(α+β).
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