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18 . ∫(x)((x+3)/(x-1)) = এর Domain কত?

  • A. {1}
  • B. R-{3/2}
  • C. R -{1,-1}
  • D. {x∈R : x ≠ 1}
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19 . +++..........+ = কত ?

  • A. ২৮৭০
  • B. ১৫৪০
  • C. ৪৪১০০
  • D. কোনোটিই নয়
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26 . ৮৪ টাকা কত টাকার ৮.৭৫%?

  • A. ৮৮০ টাকা
  • B. ৯৪০ টাকা
  • C. ৯৬০ টাকা
  • D. ৯৮০ টাকা
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