Math, asked by snehajm8377, 5 months ago

X+1/x=20.find x cube+1/x cube

Answers

Answered by sandy1816

2

Answer:

x³+1/x³=(x+1/x)³-3(x+1/x)

x³+1/x³=(20)³-3.20=8000-60=7940

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