Math, asked by cuteprinccess111, 7 months ago

Plzz answer the 6th one its urgent plzzz

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Answered by himanshu973

0

Answer:

by putting value of a you get answer =8

Answered by mhanifa

0

Answer:

8

Step-by-step explanation:

6 =========

If a= 1-√2, find the value of (a-1/a)³

a-1/a= 1-√2 -1/(1- √2)=
1-√2 - (1+√2)/(1+√2)(1-√2)=
1-√2 - (1+√2)/(1-2) =
1-√2 + 1+√2= 2

(a-1/a)³= 2³= 8

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