If sum of first k terms of an AP is 2k^2-3k, then what is its second t

1.	If sum of first k terms of an AP is 2k^2-3k, then what is its second term?
Answer» Sum of first k term=2k^2-3kSum of first(k-1) term=2(k-1)^2-3(k-1)=>2(k^2+1-2k)-3k+3=>2k^2+2-4k-3k+3=>2k^2+5-7k..K th term=2k^2-3k-2k^2-5+7k=>4k-5..2nd term of AP=4×2-5=3. Please solve fast?

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