The first and the last terms of an A.P. are 1 and 11 . If the sum o... VIDEO
The first and the last terms of an A.P. are 1 and 11 . If the sum of the terms is 36 , then find the number of terms.https://bit.ly/YTAI_PWAP https://www.pw.live/
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\[
72+70+68+\ldots+40 .
\]
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