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यदि `A=[(1,0,1),(0,1,2),(0,0,4)]` हो तो दिखाइए `|3A|=27|A|` |
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Answer» `A=[(1,0,1),(0,1,2),(0,0,4)]` `implies|A|=|(1,0,1),(0,1,2),(0,0,4)|=|(1,2),(0,4)|-0-0=4-0=4` `implies 27|A|=27xx4=108` अब `3A=[(3,0,3),(0,3,6),(0,0,12)]` `|3A|=|(3,0,3),(0,3,6),(0,0,12)|=3|(3,6),(0,12)|-0+0` `=(36-0)=108` `:.|3A|=27|A|` |
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