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If the centre of a circle is (2a,a-7) ,t...

If the centre of a circle is (2a,a-7) ,then Find the value of a , if the ciecle passes through the point (11,-9) and has diameter `10sqrt(2)` units .

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AGRAWAL PUBLICATION-(2019) QUESTION PAPER-EXAMPLE
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  5. Prove that sqrt 3 is an irrational number.

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