Question

if a = 6+2√3, find the value of a - 1/a​

Answer 1

Answer:

1/5

Step-by-step explanation:

Answer 2

Answer:

9.41

Step-by-step explanation:

= (6+2√3)-1/(6+2√3)

= (6+2√3)(6+2√3)-1/(6+2√3)

= 47+41.5/9.4

= 88.5/9.4

= 9.41