Question: Express the following functions in cosine form: (a) 4 sin ( t - 30o) (b) -2 sin 6t (c) -10sin( t + 20o)

Express the following functions in cosine form:
(a) 4 sin (ω t - 30o)
(b) -2 sin 6t
(c) -10sin(ω t + 20o)

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