Question

how 2 sin x cos x is equals to sin2x pls answer fast its the matter of my life plssss urgent​

Answer 1

Step-by-step explanation:

2sinxcosx = sin2x

Sin2x = Sin(x+x)

2sinxcosx = sinx × cosx + sinx × cosx

formula

Sin (A+B) = SinA × CosB + CosA × sinB

Sin(x+x) = sinx × cosx + cosx × sinx

sin2x = 2sinxcosx

hence proved