Question

if x is equals to 7 + 4 under root 3 then find the value of x + 1 by X ​

Answer 1

Answer:

Step-by-step explanation:

We know that 7+4*(3)^1/2

We need to find x+1/x

substitute value of x -

We get-

[7+4*(3)^1/2+ 1]/ 7+4*(3)^1/2

= [8+4*(3)^1/2] / 7+4*(3)^1/2

Rationalising

[8+4*(3)^1/2]*[7-4*(3)^1/2] / [7+4*(3)^1/2] *[7-4*(3)^1/2]

We get

[56+(28*(3)^1/2)-(32*(3)^1/2)-16*(3)^1/2] / 1

On solving this we get

[56-20*(3)1/2]