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  • Prove by direct method that for any real numbers x,y if x=y, then x^{2}=y^{2}.

Prove by direct method that for any real numbers x,y if x=y, then x^{2}=y^{2}.

Answers (1)

Given: For any real no. x, y, x = y.

Let us consider that,

p: x = y, where x & y are real no.

If we square both sides,

q: x^{2} = y^{2}

    ……. (assumption)

Thus, p=q.

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