1.

निम्न व्यंजकों के गुणनखण्ड ज्ञात कीजिए - `a^(3)-(1)/(a^(3))-2a+(2)/(a)`

Answer» यहाँ
`a^(3)-(1)/(a^(3))-2a+(2)/(a)=(a^(3)-(1)/(a^(3)))-2(a-(1)/(a))`
`=(a-(1)/(a))[a^(2)+(a)((1)/(a))+(1)/(a^(2))]-2(a-(1)/(a))`
`=(a-(1)/(a))(a^(2)+1+(1)/(a^(2)))-2(a=(1)/(a))`
`=(a-(1)/(a))(a^(2)+1+(1)/(a^(2))-2)=(a-(1)/(a))(a^(2)+(1)/(a^(2))-1)`


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