find the sum of 11 terms if its middle term is 30
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Answered by
19
Answer:
330
Step-by-step explanation:
Given middle term or the sixth term is 30
Then, a+5d=30
Sum = 2n(2a+(n−1)d)
=211(2a+10d)
Substituting,
=211(2×30)
=330
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3
Answer:
your answer is given upside
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