Let a,b,c be such that b(a+c)=0. If a−bca+1b+1c−1a−1b−1c+1+a+1a−1(−1)n+2ab+1b−1(−1)n+1bc−1c+1(−1)nc=0, then the value of ' n ' is
Held on 30 Apr 2009 · Verified 6 Jul 2026.
zero
any even integer
any odd integer
any integer
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