Math ECAT Exams Quizzes MCQs Quizzes Induction and Binomial Theorem Online Test

Question:
IF n is any positive integer, then 1/1.3+1/3.5+1/5.7 + …+ 1/(2n - 1)(2n + 1) =

Option A):
n/2n+1
Option B):
2n/n+1
Option C):
n/2(n+1)
Option D):
n/n+2

Correct Answer is Option A):
n/2n+1