अनुक्रम \(7,11,15,19,\ldots\) का (n)वाँ पद क्या है?
What is the (n)th term of the sequence \(7,11,15,19,\ldots\)?
Explanation opens after your attempt
A. \(a_n=4n+3\)
Concept
The first term is (7) and the difference is (4), so \(a_n=4n+3\). In exams, match the rule at (n=1).
Why this answer is correct
The correct answer is A. \(a_n=4n+3\). The first term is (7) and the difference is (4), so \(a_n=4n+3\). In exams, match the rule at (n=1).
Exam Tip
पहला पद (7) और अंतर (4) है, इसलिए \(a_n=4n+3\) है। परीक्षा में (n=1) पर नियम मिलाएँ।
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