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28-03-2021
Mathematics

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BRAINLIEST PLEASE ANSWER PRE CALC
Factor the algebraic expression below in terms of a single trigonometric function.
sin 2x + sin x - 2 (2 points)

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gufeliz1965 gufeliz1965

28-03-2021

We know that sin (2x) = 2 sinxcosx.

So, sin (2x) + sin (x) - 2 becomes

2sin xcosx + sinx- 2.

Factor out sinx.

sinx(2cosx + 1 - 2)

sinx(2cosx - 1)

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