54
Assertion (A) : Unit digit of $3^n$ cannot be an even number for any natural number $n$. Reason (R) : $2$ is not a prime factor of $3^n$ for any natural number $n$.
Show SolutionHide Solution↓
(a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).