Math, asked by Pathrinath, 11 months ago

if x+1/x=7 find x^3+1/x^3

Answers

Answered by Anonymous

3

Hii its tom85

(X + 1/X)^3 = x^3 + 1/x^3 + 3/X + 3x

x^3 + 1/x^3 = 7^3 - 21

x^3 + 1/x^3= 7(28) = 196

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hope it may helps you

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