Previous Year Paper
CAT-2002-Previous Years Paper
The nth element of a series is represented as Xn = (−1)n Xn-1
If X0= x and x > 0, then which of the following is always true?
|A||Xn, is positive if n is even|
|B||Xn, is positive if n is odd|
|C||Xn is negative if n is even|
|D||None of these|
⇒ Choices (a), (b), (c) are incorrect.