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[" In a right-angled "/PQR,/P=90^(@)" .I...

[" In a right-angled "/_PQR,/_P=90^(@)" .If "M" is the mid-point of "PQ" ,prove that "QR^(2)=4" MR "],[3PR^(2)" ."]

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In triangle PQR , /_PRQ=90^@ and M is the midpoint of QR. Prove that PQ^2=4PM^2-3PR^2 .

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