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Question

Disprove, by finding a suitable counter example, the statement x2>y2 for all x>y.

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Solution

For negative number The statement x2>y2 For all x > y is disprove
If x=3 and y=4 Then 3>4
But in case x2=(3)2=9 and y2=(4)2==16
So x2<y2
Then the statement x2>y2 For all x > y is disprove

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