Partial Sums (1 of 2: Adding up terms in an arithmetic progression)

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Sir u r really incredible as a teacher.🙌

mandira
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You are awsome sir...for which institution you give coaching

sujalkumar
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Sir it would be great for me if u can make a video on rule of counting under the section AP as i really get to confuse in including and excluding the terms by such silly terms like from and between that "how many terms are between x and y?" And "how many terms are from a and y?" I know tht it seems really easy but while doing this u can only realise how challenging this is. Plss either come with a short video and or teach me personally. This would be so humble of you.
Regards Ashish

ashisharora