Question

if sinx+ cosx=1, then sin2x=​

Answer 1

Answer:

cosec2x

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Answer 2

Answer:

sin2x =0

Step-by-step explanation:

squaring both the sides

(sinx+cosx)^2=1^2

sin^2x+2sinxcosx+cos^2x = 1 -----(1)

since, (sin2x = 2sinx cosx) formula

substituting in (1)

sin^2x + sin2x +cos^2x=1

since sin^2x+cos^2x=1

1+ sin2x=1

sin2x=0

I think that's it

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