Math, asked by amarsiri43239, 1 year ago

cot 4x (sin 5x + sin 3x) = cotx (sin 5x - sin 3x)

Answers

Answered by Anonymous

0

Step-by-step explanation:

Cot 4x(2 Sin4x *Cosx) = Cotx (2 Cos4x * Sinx)

Sin4x * Cosx * Cot 4x = Cos 4x * Sinx * Cotx

(Sin4x*Cosx*Cos4x/Sin4x) = (Cos4x*Sinx*Cosx/Sinx)

=> Cosx * Cos4x = Cosx * Cos4x

LHS = RHS

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