अनुक्रम \(6,11,16,21,\ldots\) में \(a_n=46\) के लिए (n) क्या है?
In the sequence \(6,11,16,21,\ldots\), what is (n) when \(a_n=46\)?
Explanation opens after your attempt
C. (9)
Concept
Here (a_n=6+(n-1)5=5n+1), so (5n+1=46) gives (n=9). Set the rule equal to the given term.
Why this answer is correct
The correct answer is C. (9). Here (a_n=6+(n-1)5=5n+1), so (5n+1=46) gives (n=9). Set the rule equal to the given term.
Exam Tip
यहाँ (a_n=6+(n-1)5=5n+1), इसलिए (5n+1=46) से (n=9)। पद मिलने पर नियम को बराबर रखें।
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