A.  1.3..5.....(2r-5)/r! 1/√2a(3b/4a)r

B.  1.3..5.....(2r-5)/r! 1/√2(3b/4a)r

C.  1.3..5.....(2r-5)/r! 1/2a(3b/4a)r

D.  none

Correct Answer :
1.3..5.....(2r-5)/r! 1/2a(3b/4a)r
Explanation :
No Explanation available for this question
"