FORMULA FOR FINDING--
LAST TERM FROM A. P. = WHICH TERM FROM STARTING...
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Answer: THIS IS THE ANSWER =
Step-by-step explanation:
If S be the sum of all the terms of the A.P.,The common difference is 2S−(l+a)l2−a2.
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Answer:
general formula for AP=a,a+d,a+2d,a+3d........
an=a+(n_1)×d
sum of n terms in AP=n/2(2a+(n_1)×d)
sum of all terms of finite APwith the last term =n/2(a+1)
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