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CBSE Class 10 Answered

Show that the sum of an AP whose first term is "a" second term is "b" third term is "c" ,is equal to (a+c)(b+c-2a)/2(b-a)
Asked by | 26 Feb, 2013, 02:58: PM
Expert Answer
Answered by | 26 Feb, 2013, 04:43: PM

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