Question

if X=4-√15findx+1/x​

Answer 1

Answer:

8

Step-by-step explanation:

x=4+√15 which is given..

Thus,, 1/x= 1/(4+√15)×(4-√15)/(4-√15)

= 1/x=4-√15/16-15

= 1/x= 4-√15......

= x+1/x=4-√15

= x+1/x

= (4+√15+4-√15)

= x+1/x= 8..

hope it will help you