Question

a+ 1/a=6 then a^3 + 1/a^3=

Answer 1

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Here is ur answer

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a+1=6a

6a-a = 1

5a=1

a=_1

5

Now, a^3+ _1. = (1/5)^3 + 1/(1/5)^3

a^3

= 15625+1/125=15626/125 Ans.

Thnq

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