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Solve: sinx + cosx = 1 + sinx.cosx

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Solve: sinx + cosx = 1 + sinx.cosx

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Best answer

∵ sinx + cosx = 1 + sinx.cosx ........(i) 

Let sinx + cosx = t 

⇒ sin2x + cos2x + 2 sinx.cosx = t2 

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