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ARITHMETIC PROGRESION

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Description
Solution from NCERT Maths book

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sarah_1n2d
By: sarah_1n2d
1072 days 22 hours 28 minutes ago

HI. Thanks for your help.BUt I'm still curiuos about something...How do you know which formula in AP to be used in certain question? Thanks

Presentation Transcript Presentation Transcript

ARITHMETIC PROGRESSION :

Question:Find the sum of first 22 terms of an AP in which d = 7 and 22nd term is 149. :

Slide6 :

Slide7 :

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