MCQ 11 Mark
Assertion (A): A sequence is said to definite if it has finite no of terms.
Reason (R): The sequence whose $n^{\text {th }}$ term if $\frac{2^n}{n}$ if $2,2, \frac{8}{3}, 4 \ldots$
Reason (R): The sequence whose $n^{\text {th }}$ term if $\frac{2^n}{n}$ if $2,2, \frac{8}{3}, 4 \ldots$
- ABoth A and R are true and R is the correct explanation of A.
- BBoth A and R are true but R is not the correct explanation of A.
- CA is true but R is false.
- DA is false but R is true.
Answer
View full question & answer→(b) Both A and R are true but R is not the correct explanation of A.
Explanation: Assertion is true.
Reason
Let $t _{ n }=\frac{2^n}{n}$
Putting $n =1,2,7, x$
$t_1=2, t_2=2, t_3=\frac{8}{3}, t_4=x$
80 the sequence is $2,2, \frac{8}{3}, 4$
Reason is also correct but not the correct explanation for Assertion.
Explanation: Assertion is true.
Reason
Let $t _{ n }=\frac{2^n}{n}$
Putting $n =1,2,7, x$
$t_1=2, t_2=2, t_3=\frac{8}{3}, t_4=x$
80 the sequence is $2,2, \frac{8}{3}, 4$
Reason is also correct but not the correct explanation for Assertion.