Further maths

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The 7th term of an A.p is 20 and the 13th term is 38 find the ,1,70thterm ,2,11thterm

  • Further maths -

    a+6d = 20
    a+12d = 38
    so,
    a=2
    d=3

    Can't make out which other terms you want, but knowing a and d should make it easy.

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