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Asked by Zainab hamza

The sum of 11 term of an arictiment progratiom is 891 find the 28 and 45 is terms of commion diffrest is 15
3 years ago

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Answered by oobleck
11/2 (2a+10*15) = 891
solve for a, and then
a28 = a+27d
a45 = a+44d
3 years ago
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The sum of 11 term of an arictiment progratiom is 891 find the 28 and 45 is terms of commion diffrest is 15

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