Question

if a=1-√2, find the value of(a-1/a)^3​

Answer 1

Step-by-step explanation:

here your answer I hope it will help you

Answer 2

Answer:

The value of is 8.

Step-by-step explanation:

a=1-√2

1/a=1/(1-√/2)

or, 1/a=(1+√2)/(1-√2)(1+√2)

or, 1/a=(1+√2)/(1-2)

or, 1/a=-(1+√2)

.., (a-1/a)³=[(1-√2)-{-(1+√2)}]³=(1-√2+1+√2)³=2³=8