Use the given information to find (a) sin (s+t), (b) tan (s + t), and (c) the quadrant of s+ t. cos s=4/5 and cost=8/17 s and t

Question

Use the given information to find (a) sin (s+t), (b) tan (s + t), and (c) the quadrant of s+ t.

cos s=4/5 and cost=8/17 s and t in quadrant IV

(a) sin (s+t) =

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