Question

if a=7-4√3 find √a+1/√a

Answer 1

Answer:

Step-by-step explanation:

u can use calculater.

Because we r humans vwe can make mistakes so please try on calculate for a perfect answer.

Answer 2

Answer:

Step-by-step explanation:

Given,

       a=7-4√3

So, 1/a=1/7-4√3

          =1(7+4√3)/(7)²-(4√3)²                ......[By rationalisiation]  

          =7+4√3/49-48

          =7+4√3

Now we have to find the value of √a+1/√a

  thus, (√a+1/√a)²=a+1/a +2

                           =7-4√3+7+4√3 +2

                           =16

Thus, (√a+1/√a)²=16

        √a+1/√a=√16

       therefore, √a+1/√a=4

Your required answer is 4 :) hope it helped