Question

if a=2+√3 find a-1/a​

Answer 1

this your answer step by step process

Answer 2

Answer:

Step-by-step explanation:

a=2+√3

(2+√3)  -  1/(2+√3)

taking LCM

((2+√3)(2+√3) - 1)/(2+√3)

(4 + 3 + 4√3 - 1)/(2+√3)

(6 + 4√3)/(2+√3)

rationalising the denominator

(6+4√3)(2-√3)/(2+√3)(2-√3)

(12-6√3+8√3-12)/(2²-(√3)²)

2√3/(4-3)

2√3