JEE Main202229 Jun 2022Morning ShiftMathematicsMathematical ReasoningActual
Let Δ ∈ ∧ , ∨ , ⇒ , ⇔ be such that p ∧ q Δ p ∨ q ⇒ q is a tautology. Then Δ is equal to
Options
- A∧
- B∨
- C⇒
- D⇔
Correct answer
C. ⇒
Step-by-step solution
p ∨ q ⇒ q ≡ ~ p ∨ q ∨ q ≡ ~ p ∧ ~ q ∨ q ≡ ~ p ∨ q ∧ ~ q ∨ q ≡ ~ p ∨ q ∧ t ≡ ~ p ∨ q Now, p ∧ q ⇒ ~ p ∨ q ≡ ~ p ∨ ~ q ∨ ~ p ∨ q ≡ t Hence, △ should be ⇒