નીચેનાને $a+bi$ સ્વરૂપમાં દર્શાવો: $(-i)(2i)\left(-\frac{1}{8}i\right)^{3}$

  • A
    $\frac{1}{256}i$
  • B
    $-\frac{1}{256}i$
  • C
    $\frac{1}{512}i$
  • D
    $-\frac{1}{512}i$

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$\left(\frac{1}{1-4 i}-\frac{2}{1+i}\right)\left(\frac{3-4 i}{5+i}\right)$ ને પ્રમાણિત સ્વરૂપમાં ફેરવો.

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