CBSE Class 9  >  Class 9 Notes  >  Maths - New NCERT 2026-27 (New Syllabus)  >  Points to Remember: Arithmetic Progressions

Points to Remember: Arithmetic Progressions

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Arithmetic Progressions
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Arithmetic Progressions
An AP is a sequence of numbers
 in which the difference between 
any two consecutive terms is 
constant. This difference is called 
the common difference 
(denoted by d).
Page 3


Arithmetic Progressions
An AP is a sequence of numbers
 in which the difference between 
any two consecutive terms is 
constant. This difference is called 
the common difference 
(denoted by d).
3.If d = 0, all terms of the AP are 
the same.
2.If d < 0, the AP is decreasing.
1.If the common difference
 d > 0, the AP is increasing..
Key Points About AP
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