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8 cos x + 5 sin x

  1. 8 cos x + 5 sin x

Grade:11

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
6 years ago
HIint.: a cosx + b sin x = sqrt(a2+b2)cos(x-alpha), where alpha = tan -1(b/a). Thanks,

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