X+1/x) (x-1/x) expansion formula
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Answered by
1
Step-by-step explanation:
=(x+1/x)(x-1/x)
=x²-(1/x)² .........[(a+b)(a-b)=a²-b²]
=x²-1/(x)²
Answered by
1
(x square -1)(x square+1)/x square
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