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What are progressions..? Its types with example..And also please give any important formulas regarding it which are to be kept in mind.



The series of some numbers with some relations are said to be a progressions
it have two types
arthemetic progression
example: 2,5,8,11.......
geometric progression
example: 5,15,45......
formulas: a equals a+(n-1)d
sñ equals N/2(2a+(n-1)d ..................etc
0 0 0
explain it plz
now it's not the time fire me i make it afterwards
u cant edit it later
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