16. The sum of 15 term of an A.P. is zero. If
4th term is 12, then its first term will be:
(b)-12
(d) -21
(a) 12
(c) 21
Answers
Answered by
0
Answer:
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
Similar questions