Math Problem Statement
(a) Find the sum of the first 23 terms of the AP 4, -3, -10.....
(b) An arithmetic series has first term 4 and common difference. Find
(i) the sum of the first 20 terms,
(ii) the sum of the first 100 terms.
(c) Find the sum of the arithmetic series with first term 1, common difference 3, and last term 100.
(d) The sum of the first 20 terms of an arithmetic series is identical to the sum of the first 22 terms. If the common difference is 2, find the first term.
Solution
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Math Problem Analysis
Mathematical Concepts
Arithmetic Progression
Sum of Arithmetic Series
First Term Calculation
Formulas
Sum of first n terms of an AP formula
Formula to find first term given sums
Theorems
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Suitable Grade Level
High School
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