JEE Main 202122 Jul, Evening shiftMathematicsMediumMathematical Reasoning115× since 2008Which of the following Boolean expressions is not a tautology?AOption A. (p ⇒\Rightarrow⇒ q) ∨\vee∨ (∼\sim∼ q ⇒\Rightarrow⇒ p)BOption B. (q ⇒\Rightarrow⇒ p) ∨\vee∨ (∼\sim∼ q ⇒\Rightarrow⇒ p)COption C. (p ⇒\Rightarrow⇒ ∼\sim∼ q) ∨\vee∨ (∼\sim∼ q ⇒\Rightarrow⇒ p)DOption D. (∼\sim∼ p ⇒\Rightarrow⇒ q) ∨\vee∨ (∼\sim∼ q ⇒\Rightarrow⇒ p)CheckSkip · show solution
