Question: 1. Rewrite each expression as a single trigonometric ratio. a) sin a cos 2a + cos a sin 2a b) cos 4x cos 3x -

1. Rewrite each expression as a single trigonometric ratio. a) sin a cos 2a + cos a sin 2a b) cos 4x cos 3x - sin 4x sin 3x 2. Rewrite each expression as a single trigonometric ratio, and then evaluate the ratio. tan 170% - tan 110 a) 1 + tan 170 tan 110 5 TT 5 TT TT b) cos COS + sin sin 12 12 12 12

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