Answers

2016-04-07T21:31:29+05:30
B is the answer .....................
in a ,c,d we get 1
but in b we get -1
0
2016-04-07T21:31:37+05:30
The correct answer is (b)

option (b) is odd one out as......
rest all options make 1
but this option makes -(-1)
1 5 1