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OpenStudy (anonymous):
What is the sum of all odd numbers between 100 to 300?
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OpenStudy (anonymous):
well, here you are getting an arithmetic series in which the first term is 101 , the last term is 299, the common difference is 2. so , can you find out the number of terms?
OpenStudy (anonymous):
how many terms did you write ? i missed it.
OpenStudy (anonymous):
hello
OpenStudy (anonymous):
\[\sum _{n=1}^{100} (99+2n)=20000 \]
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