Using the exponential forms of cos and sin given in (3.11a, b), prove the following
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Using the exponential forms of cos θ and sin θ given in (3.11a, b), prove the following trigonometric identities:
Data from 3.11a and b
Transcribed Image Text:
(a) sin(a + B) = sin a cos + cos a sin (b) sin0 = sin 0 -sin 30
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