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Class 10 Mathematics Medium Mcq English Medium

In this case, find the sum of the first 12 terms of the AP with a = 9 and d = 1.

Question
In this case, find the sum of the first 12 terms of the AP with a = 9 and d = 1.
174
175
120
173
Answer
174
Detailed Explanation
Use Sn = n/2 [2a + (n-1)d]. — Examisthan.com
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