Question

the 9th term of an a.p. is 449 and 449th term of an a.p. is 9 . the term which is equal to zero is

1 . 501th

2 . 502 th

3 . 508th

4 . none of these

answer with explanation

Answer 1

none of the above...
a+8d=449
a+448d=9
________
0+440d= -440
d=-1

a+(n-1)d=0
457+(N - 1)-1=0
457-n+1=0
458=n
thanks...

Answer 2

The correct answer is 458th term.

So, the correct option is (4) none of these.

Hope it will be helpful for you.

So, please mark it as the brainliest answer.