Let a_1, a_2, a_3, be in an A.P. such that _ k=1 ^ 12 a_ 2k-1 = - 72 5 a_1, a_1 0. If _ k=1 ^ n a_k = 0, then...

Question

Let a_1, a_2, a_3, be in an A.P. such that _ k=1 ^ 12 a_ 2k-1 = - 72 5 a_1, a_1 0. If _ k=1 ^ n a_k = 0, then n is :

Accepted Answer

(3)

JEE Main 2025 Mathematics question