https://uadoc.uacdn.net/doubts/09DGEAF9OP/1635384785CA0D66EA.JPEG

Q 50. If cos 0 + cos2 + cos3 0 = 1, then find the value of sino 0 + 8 sind e-
4 sin4 0 = ?
(d) None
(a) 2
(b) 3
(c) 4


English

Solution 2

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