Home » Aptitude » Algebra » Question
  1. If xx√x = (x√x)x , then x equals
    1. 4
      9
    2. 2
      3
    3. 9
      4
    4. 3
      2
Correct Option: C

xx√x = (x√x)x
⇒  xx.x1/2 = (x×x1/2)x
⇒  xx1 + (1/2) = (x 1 + (1/2))x
xx3/2 = (x 3/2)x = x 3x/2

⇒  x3/2 =
3x
⇒ x3/2
3x
= 0
22

⇒  x x1/2
3
= 0
2

⇒  x = 0   or  
1
=
3
x22

⇒  x =
3
2 =
9
24

x = 0 given indeterminate value.
∴  x =
9
4



Your comments will be displayed only after manual approval.