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Nuetrik [128]
3 years ago
8

BRAINLIEST PLEASE ANSWER PRE CALC

Mathematics
1 answer:
ahrayia [7]3 years ago
8 0

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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