x-1/x=6 find x3 - 1/x3
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hey your ans is here
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given
x-1/x=6
to find
x3-1/x3
now apply the identity
(x-1/x)^3=x3-1/x3-3(x-1/x)
(6)3=x3-1/x3-3(6)
216=x3-1/x3-18
216+18=x3-1/x3
234=x3-1/x3
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given
x-1/x=6
to find
x3-1/x3
now apply the identity
(x-1/x)^3=x3-1/x3-3(x-1/x)
(6)3=x3-1/x3-3(6)
216=x3-1/x3-18
216+18=x3-1/x3
234=x3-1/x3
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