CBSE BOARD X, asked by Anonymous, 1 year ago

prove that sinx+cosx=√2sinx

Answers

Answered by bcsuyal71
2

HEY BUDDY!!!!

I think the question isIf cosx + sinx = √2 cosx, prove that : cosx - sinx = +-√2 sinx

Answer:--Given cosx+sinx=√2cosx

Multiplying both the sides by (√2+1)

=>√2 cosx+cosx + √2 sinx+sinx=2cosx+√2cosx

cosx-sinx=√2sinx

√2 ANSWER....

Hope it helps ✌✌

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