Math, asked by raizbadarudin, 11 months ago

Evaluate: lim. cos 9x - cos 5 x
x->0 sin 17x-sin 3x​

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Answered by brunoconti
4

Answer:

Step-by-step explanation:

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Answered by skpaniyala
4

Step-by-step explanation:

Answer = 0

Equations used:

Cos A - Cos B = -2 Sin A+B/2. Sin A-B/2

Sin A - Sin B = 2 Cos A+B/2. Sin A-B/2

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