Assertion : If sum of the first n terma of an AP is given by Sn=3n2−4n. Then ita nth term is an=6n−7.
Reason: nth term of an AP, whose sum to n terma is Sn, is given by an=Sn−Sn1
A (c) Assertion (A) is true but reason (R) is false.
B (a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
C (d) Assertion (A) is false but reason (R) is true.
D (b) Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).