Question

If x+1/x=27 then find the value of x+1/x

Answer 1

Step-by-step explanation:

ANSWER ::

If x+1/x=27 then the value of x+1/x = 27

Answer 2

Step-by-step explanation:

Explanation:

just expand, rearrange n substitute,!

(

x

−

1

x

)

2

=

x

2

−

2

⋅

x

⋅

1

x

+

(

1

x

)

2

=

x

2

−

2

+

(

1

x

)

2

=

x

2

+

1

x

2

−

2

since we have the value of

x

2

+

1

x

2

as

27

,

=

27

−

2

=

25

⇒

(

x

−

1

x

)

2

=

25

⇒

x

−

1

x

=

±

5