Question: Show that , (a) sin0 [cos 40 - 4 cos 20 + 3] (b)sin0 = [sin 50 5 sin 30 + 10 sin 0] (c)

Show that ,

(a) sin0 [cos 40 - 4 cos 20 + 3] (b) sin0 = [sin 50 5 sin 30 + 10 sin 0] (c) cos 0 = 3/2 [cos 60 + 6 cos 40

(a) sin0 [cos 40 - 4 cos 20 + 3] (b)sin0 = [sin 50 5 sin 30 + 10 sin 0] (c) cos'0 = 3/2 [cos 60+ 6 cos 40 + 15 cos 20 + 10] (d) cos0 sin0 = [2 sin0+ sin 30 - sin 50] 16 =

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