Question

(a)
$x - \frac{1}{x } = 11$

Answer 1

Answer :

Now, x - 1/x = 11

Squaring both sides, we get

x^2 + 1/x^2 - 2 = 11^2

or, x^2 + 1/x^2 = 121 + 2

or, x^2 + 1/x^2 = 123

Hope it helps!

Answer 2

Given,.
$x - \frac{1}{x } = 11$
making square of both sides be get ,

x² + 1/x² -2*x *1/x =11²

x² + 1/x² -2 = 121

x² + 1/x² = 123.

hope it helped you!!!