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MHT CET202013 Oct 2020Morning ShiftMathematicsMathematical ReasoningActual

Which of the following statement pattern is a tautology? array l S ₁ ( q p ) q S ₂ [ p ( p q )] q S ₃ ( p q ) ( p q ) S ₄ ( p q ) r array

Options

  1. AS ₄
  2. BS ₃
  3. CS ₁
  4. DS ₂

Correct answer

D. S ₂

Step-by-step solution

All the entries in column 10 are T S ₂ is a tautology

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