1.

If a=2+√3, then find the value of a-1\a​

Answer»

ANSWER:

2√3

Step-by-step EXPLANATION:

a = 2+√3_______(1)

1/a = 1/2+√3

Rationalise it,

1/a = 1/2+√3×2-√3/2-√3

= 2-√3/(2)²-(√3)²

= 2-√3________(2)

so, a+1/a = 2+√3-2+√3=2√3 from (1) and (2) EQUATION

______________________

Hope it's helpful


Discussion

No Comment Found

Related InterviewSolutions