first term and common difference of an A. P are 6 and 3 respectively find S27 a=6,d=3,S27=?​

Question

first term and common difference of an A. P are 6 and 3 respectively find S27
a=6,d=3,S27=?​

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Eloise 1 week 2021-11-24T20:34:10+00:00 2 Answers 0 views 0

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    0
    2021-11-24T20:35:57+00:00

    Answer:

    answer attached in photo

    0
    2021-11-24T20:36:08+00:00

    Step-by-step explanation:

    Sn=n/2(2a+(n-1)d)

    S27=27/2(2*6+(27-1)3)

    =27/2(12+26(3))

    =27/2(90)

    =1215.

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