Question

X*2+1/X*2=38 , THEN X*2-1/X*2

Answer 1

Answer:

Step-by-step explanation:

The answer is 1/x = 6

Answer 2

Answer:

Let us consider the square of x−

x

1

as follows:

(x−

x

1

)

2

=x

2

+(

x

1

)

2

−(2×x×

x

1

)(∵(a−b)

2

=a

2

+b

2

−2ab)

=x

2

+

x

2

1

−2

=38−2(Given:x

2

+

x

2

1

=38)

=36

Now, since (x−

x

1

)

2

=36, therefore, we have:

(x−

x

1

)

2

=36

⇒x−

x

1

=

36

=6

Hence, x−

x

1

=6

hope it's helpful..