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Subjects
Mathematics CBSE
Class 10
Arithmetic Progression
Textbook questions
25.
Exercise problem XX
Exercise condition:
1
m.
Show that \(a_1, a_2 … , a_n , …\) form an AP where an is defined as below \(a_n = 3 + 4n\) Also find the sum of the first \(15\) terms in each case.
Sum of first \(15\) terms \(=\)
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