Question

if a=8+2 root 15 find root a

Answer 1

Answer:

4.872

Step-by-step explanation:

a= 8+2√15

√a=√(8+2√15)

2ab = 2√15

ab =√15

a=1 and b=√15 (can be vice versa also)

thus √a = 1+√15

=4.872