To find the sum of the first 20 terms of the arithmetic progression (AP) given by the terms (x+y),(x−y),(x−3y),…, we will follow these steps: Step 1: Identify the first term (a) and the common difference (d)The first term a of the AP is:a=x+y To find the common...
Hint:We can see that the given series in the problem follows an Arithmetic Progression (AP). We find the ${{n}^{th}}$ term of the series by using the first term and common difference of the given series. Once, we find the ${{n}^{th}}$ terms, we...
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The basic formula to calculate the mean is calculated based on the given data set. Each term in the data set is considered while evaluating the mean. The general formula for mean is given by the ratio of the sum of all the terms and the total number of terms. Hence, we can say; ...
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my formula should check for immediate space and "-" and immediate spaces before "-" if any and exclude those parts from the text like "-Offline" or " - offline". I have used the term "offline" , so that if in any cell offline is without the text "payment", that also can be loo...