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`4hati-5hatj+11hatk` का मापांक ज्ञात कीजिए।

Answer» `4hati-5hatj+11hatk` का मापांक `=|4hati-5hatj+11hatk|=sqrt((4)^(2)+(-5)^(2)-(11)^(2))`
`=sqrt(16+25+121)`
`sqrt(162)=9sqrt(2)`


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