Question

if x minus one by X is equals to root 5 find the value of x + 1 by X​

Answer 1

Answer:3

Step-by-step explanation:

^2 = power 2

V = Square root

Question:

x -  1/x   =   V5                    

On squaring both sides

(x    -    1/x)^2   =     5

x^2 + (1/x)^2   - 2 .  x  .  1/x  =  5

x^2 + 1/x^2 - 2 = 5                      

On adding 4 to both sides

x^2 + 1/x^2 + 2 = 9               =>  (x     +    1/x)^2    =   9         =>    x + 1/x = 3

Answer 2

Answer:

first we have to find x² + 1/ x²

then we have to find x + 1 / x

and and the answer is ±3

(for solution please refer to the given image)