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Sequences and Series question

2019 · 9 Jan · Shift 2 · Q24
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  5. /2019 · 9 Jan · Shift 2 · Q24

Sequences and Series question

2019 · 9 Jan · Shift 2 · Q24

JEE MainMathematicsSequences and SeriesMCQ+4 / −1
Let a, b and c be the 7th, 11th and 13th terms respectively of a non-constant A.P. If these are also three consecutive terms of a G.P., then ac{a \over c}ca​ equal to :
  1. A
    2
  2. B
    12{1 \over 2}21​
  3. C
    713{7 \over 13}137​
  4. D
    4
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