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Given that cos 0 = - 16 6 '2 Given that cos - , 6 < 0 <1t, 2 find the exact value of each

Given that cos 0 = - 16 6 '2

Given that cos - , 6 < 0 <1t, 2 find the exact value of each of the following. (a) sin (20) (b) cos (20) (c) sin (a) sin (20) = 2 (d) cos 2 (e) tan (20) (f) tan 2 (Type an exact answer, using radicals as needed.)

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