If the first m terms of an A.P. is 2m2+3m, then what is its second term
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Sm = 2m2 + 3m
putting m = 1
S1 = 2 + 3 = 5
S2 = 8 + 6 = 14
S3 = 18 + 9 = 27
Hence , a = 5
and d = 9 - 5 = 4 (14 -5 = 9 )
Second term = a+d = 5 + 4 = 9
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putting m = 1
S1 = 2 + 3 = 5
S2 = 8 + 6 = 14
S3 = 18 + 9 = 27
Hence , a = 5
and d = 9 - 5 = 4 (14 -5 = 9 )
Second term = a+d = 5 + 4 = 9
Hope it helps...
Please mark as brainliest
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