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#12589 Bangla Language & Literature General Level 0

নীচের কোনটি সঠিক নয়? $\overline{A+B}=\overline{A}.\overline{B}$

  1. A $\overline{A+B+C}=\overline{A}.\overline{B}.\overline{C}$
  2. B $\overline{A+B}=\overline{A}+\overline{B}$
  3. C $\overline{A+B}=\overline{A}.\overline{B}$
  4. D $\overline{A.B.C}=\overline{A}+\overline{B}+\overline{C}$
Answer: B - $\overline{A+B}=\overline{A}+\overline{B}$

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