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प्रश्न
If `"m" -1/"m"=5`, find: `"m"^4+1/"m"^4`
बेरीज
उत्तर
`"m"^4+1/"m"^4=("m"^2+1/"m"^2)^2-2`
= (27)2 − 2
= 729 − 2
= 727
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Important Formula of Expansion
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