Question

ii) If A = 5+2√6, find the value of √A + 1/√A​

Answer 1

Step-by-step explanation:

A=5+2√6

=(√3)^2+(√2)^2+2(√3)(√2)

=(√3+√2)^2

√A=√3+√2

1/√A=√3-√2/(√3+√2)(√3-√2)

=√3-√2/3-2=√3-√2

√A+1/√A=√3+√2+√3-√2

=2√3