Question

If x= 1- root over 2
Then find the value of (x-1/x) whole cube???

Answer 1

Answer:

Step-by-step explanation:

Answer 2

x=1-√2

x²=(1-√2)²

x²= 1+2-2√2

x²= 3-2√2

x² -1 = 3-2√2 -1

x²-1= 2-2√2

x²-1 =2(1-√2)

Now,

{x-1/x}³

{(x²-1)/x}³

{2(1-√2)/1-√2}³

{2}³

8 is your answer

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