5-20
A Text Book of Mathematics-X
21. एक A.P. का चौथा पद शून्य है। प्रमाणित कीजिए कि इसका 25वाँ पद इसके 11वें पद का तीन गुणा
है।
ICBSE 2005
१
If fun AD 1
1
0
A
15
15
fr
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