Discuss Forum
1. If x + 1x = 4, then what is the value of xx2 - 3x + 1/
- A. 4
- B. 4
- C. 4
- D. 4
Answer: Option D
Explanation:
Given that,
x + 1/x = 4
(x2+1)/x=4
x2+1=4x
Now,
x/(x2 - 3x + 1)
= x/(x2 + 1 - 3x)
= x/(4x - 3x)
= x/x
= 1
Post your comments here: