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Sequences and Series question

2022 · 27 Jun · Shift 2 · Q24
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  5. /2022 · 27 Jun · Shift 2 · Q24

Sequences and Series question

2022 · 27 Jun · Shift 2 · Q24

JEE MainMathematicsSequences and SeriesMCQ+4 / −1
If a1, a2, a3 ...... and b1, b2, b3 ....... are A.P., and a1 = 2, a10 = 3, a1b1 = 1 = a10b10, then a4 b4 is equal to -
  1. A
    3527{{35} \over {27}}2735​
  2. B
    1
  3. C
    2728{{27} \over {28}}2827​
  4. D
    2827{{28} \over {27}}2728​
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