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  • 04-08-2020
  • Mathematics
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solve the equation: sin(2x)= sin x

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bekkarmahdi702
bekkarmahdi702 bekkarmahdi702
  • 04-08-2020

Answer:

Below

Step-by-step explanation:

sin(2x) = 2 ×cos(x)× sin(x)

● sin(x) = 2 × cos(x) × sin(x)

● 2 × cos(x) = 1

● cos (x) = 1/2

So we can deduce that:

● x = Pi/3 + 2*k*Pi

● or x = -Pi/3 + 2*k*Pi

K is an integer

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