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first term and the common difference
OR
Find the sum of all 11 terms of an A.P whose middle term is 30.
171
ha

By Eva

first term and the common difference
OR
Find the sum of all 11 terms of an A.P whose middle term is 30.
171
hat cor​

About the author
Eva

the quantity which has unit kg-m/sec.sec is (a)force (b) pressure (c) both (d) none​

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The number of (unlikes
terms in the expression
3xy2y2+2y2z – y2 x + y (xz + yz)-5 is​

1 thought on “first term and the common difference<br />OR<br />Find the sum of all 11 terms of an A.P whose middle term is 30.<br />171<br />ha”

  1. Answer:

    330

    Step-by-step explanation:

    Given middle term or the sixth term is 30

    As we know, an=a+(n−1)d, where a & d are the first term and common difference of an AP respectively.

    Then, a+5d=30

    Sum = 2n(2a+(n−1)d)

    =211(2a+10d)

    Substituting,

    =211(2×30)

    =330

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