3 years ago

(sinx+cosx)2=sin2x+1

Mathematics

1 answer:

miskamm [114]3 years ago

5 0

Answer:

(sinx+cosx)²=sin2x+1

RHS

sin2x+1. (sin2x=2sinx*cosx)

2sinx*cosx+1. (sin²x+cos²x=1)

2sinx*cosx+sin²x+cos²x.

(sinx+cosx)²

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