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[" (i) If "cos theta+sin theta=sqrt(2)co...

[" (i) If "cos theta+sin theta=sqrt(2)cos theta" हो,तो Prove it "],[" That "cos theta-sin theta=sqrt(2)sin theta]

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If cos theta+sin theta=sqrt(2)cos theta then prove that cos theta-sin theta=sqrt(2)sin theta

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