Question

X=√2-1 find the value of (x-1/x)cube

Answer 1

Step-by-step explanation:

(x-1/x)

={(✓2-1)-1/(✓2-1)}

=✓2-2/✓2-1

=✓2(1-✓2)/✓2-1

=✓2(1-✓2)/-(1-✓2)

=-✓2