UPSKILL MATH PLUS
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Learn more1. Find the sum of first seven numbers which are multiples of \(2\) as well as of \(9\).
Therefore, the sum of the seven terms are .
2. How many terms of the AP: \(–15, –13, –11,...\) are needed to make the sum \(–55\)? Explain the reason for double answer.
The required number of terms are either or .
[Note: Enter the number of terms in increase the order.]
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