CBSE Class 10 Answered
Plz....solve quickly......board is up...
Asked by | 12 Mar, 2009, 07:48: PM
Expert Answer
Let a-d,a and a+d be three terms of an AP
ATQ
a-d +a + a+d = 15 So a =5
(a-d )2+a2 + (a+d)2 = 93
3a2+2d2= 93
d = 3
Answered by | 12 Mar, 2009, 10:25: PM
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