Question

Use an appropriate identity to solve the given equation. 1 (a) sin(0) cos (35°) + cos(0) sin (35°) = 2 (b) cos(2x) cos(x) + s

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Answer #1

som ã Griven Simo cos 35° + coso sim 35º = √ sim (0+35) 2 -> IN Sim (@+35°) = Sim 30° We know that simo = sina then 0 = 18+ (Sohn by Criven Cos ax cosa + sim 2x sima = -1 We know that Cos (A-B) = cos A COSB +sim A simB SO COS (2x-3) = -1 T Cosa = COS

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