Question

If x + 1/x = 4 and x2 + 1/x2 = 10, find the value of x - 1/x​

Answer 1

Step-by-step explanation:

Given,

x−

x

1

=4

Now squaring both sides we get,

⇒x

2

+2.x.

x

1

+

x

2

1

=16

⇒x

2

+2+

x

2

1

=16

⇒x

2

+

x

2

1

=16−2

⇒x

2

+

x

2

1

=14.