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`62^(2)-32^(2)+(?)^(2)=3144`A. 17B. 16C. 19D. None of these |
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Answer» Correct Answer - D `(62+32)(62-32)+?=3144` `rArr 94xx30+?^(2)=3144` `rArr 2820+?^(2)=3144` `rArr ?^(2)=3144-2820=324` `:. ?=sqrt(324)=18` |
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