**263**
Sushovan Halder
**·**2014-06-11 10:06:18
8) d;

9) c;

10)b;

11) b;

12) 3;

13) 1;

For 14) the general term in the denominator is 4r^{2} +3.on simplyfying the equation reduces to tan^{-1}(r+1/2) - tan^{-1}(r-1/2).Now after summing the term remaining is π/2 - tan^{-1}(1/2),which is also equal to π/4+π/4-tan^{-1}(1/2).now calculate by taking one π/4 as tan^{-1}(1).

**43**
Jeet Sen Sharma
**·**2013-06-07 08:09:34
8 is D

9 is C

10 is C

11 is B

12 is "zero"

13 is "one"

**1357**
Manish Shankar
**·**2014-06-09 23:06:17
These are also good question on limits

**85**
Anindita Roy
**·**2014-06-10 12:16:35
Plz show how to do ques 14

**1357**
Manish Shankar
**·**2013-06-14 01:14:05
Yes the answer for 10 is B

·0·Reply·2013-06-07 22:43:24