Question

x=4-√15 find x+1/x please give answer of these

Answer 1

Answer:

8

Step-by-step explanation:

R.T.P {Required to prove} : x+1/x

Given x = 4-√15

1/x = 1/4-√15

It's Rationalising factor is 4+√15

So, 1/(4-√15) x (4+√15)/(4+√15)

= (4+√15)/ [(4)^2 - (√15)^2]

=(4+√15)/16-15

= (4+√15)

(4-√15) + (4+√15)

+√15 and -√15 gets cancelled

4+4

=8

Hope it helps you,

Manikanta Bharatula,

Thank you.