Question

if X + 1 by x is equal to 4 find the value of x minus one by X​

Answer 1

Answer:

x+1/x=4

x+1=4x

4x-x-1=0

3x-1=0

x=1/3

x-1/x=(1/3-1)/1/3

(1-3/3)3

-2

Answer 2

Answer:

2√3

Step-by-step explanation:

(a+b)²-(a-b)² = 4ab

(x-1/x)²-(x+1/x)² = 4 (x) (1/x)

(x-1/x)² - 4² = 4 (x and x get cancelled if we muptiply 4×1=4)

(x-1/x)²-16 = 4

(x-1/x)² = 16 - 4

=√12

=2√3

Ans : 2√3

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