Question

if a=2+√3 find the value of a=1/a​

Answer 1

I THINK YOUR QUESTION IS WRONG 9J THE PLACE OF EQUALS TO THEIR WILL THE SIGN OF SUBTRACTION

ANSWER

Given a = 2 + √3

⇒ (1/a) = 1 / (2 + √3)

Multiply and divide by (2 − √3)

⇒ (1/a) = (2 − √3) / [(2 + √3)(2 − √3)]

⇒ (1/a) = (2 − √3) / [4 − 3]

⇒ (1/a) = (2 − √3)

∴ a + (1/a) = (2 + √3) + (2 − √3)

= 4

HOPE IT HELPS

Answer 2

Answer:

a*a=1

a^2=1

(2+√3)^2=4+3+4√3

7+4√3