Use the cosine of a sum and cosine of a difference identities to find cos(s+t) and...

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Use the cosine of a sum and cosine of a difference identities to find cos(s+t) and cos (s-t). 2 4 cos s=5 and sint= 5s and t

Answer 1

Answer #1

Cos (s+t) = cos(sicos (t) - Šín (s) sin(t) -11-13) (5) (T)/-1993 4J2i - (3) 25 Cos(s+t) 6 -4521 25 - 0-4932 11 Cos (5-t) Cos

Answer 2

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