The sums of first n terms of three arithmetic progression are respectively. The first term of each A.P. is 1 and their common difference are 1,2,3 respectively. Prove that
sum of 3 APs =
First term of each AP = 1
CBSE Class 10, 12 syllabus 2024-25 out; board restores two-level mathematics rule
CBSE Class 10 board exam 2024 passing criteria, eligibility for compartment; all you need to know
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