Question

if x=9 -4√5 find the value of x+1/x​

Answer 1

Step-by-step explanation:

If x = 9 - 4√5

x + 1 / x = ?

then,

( 9 - 4√5 ) + 1 / ( 9 - 4√5)

{( 9- 4√5)² + 1 } / ( 9 - 4√5)

(81 - 80 + 1) / ( 9 - 4√5)

2/ (9 - 4√5 ) answer

Answer 2

Answer:

Step-by-step explanation:

If x = 9 - 4√5

x + 1 / x = ?

then,

( 9 - 4√5 ) + 1 / ( 9 - 4√5)

{( 9- 4√5)² + 1 } / ( 9 - 4√5)

(81 - 80 + 1) / ( 9 - 4√5)

2/ (9 - 4√5 ) answer