Question

a=5+2√6 and b=1/a. a^2+b^2=?​

Answer 1

Answer:

Step-by-step explanation:

B =1/5+2√6

= 5-2√6/(5+2√6)(5-2√6)

= 5-2√6/25-24

= 5-2√6

A^2 + b^2

(5+2√6)^2 +(5 -2√6)^2

25 + 24+25+24+2(5(2√6))-2(5(2√6))

= 98