Math, asked by manojsrini, 9 months ago

If x = 9- 4 root 5 find x^3 -
1/x^3

Answers

Answered by sasikiran26

0

Step-by-step explanation:

Given,

x = 9- 4√5

x³=729-64×5√5

=409√5

x³-1/x³=409√5-1/409√5

=1-1

=0.

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