अनुक्रम \(5,7,9,11,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(5,7,9,11,\ldots\)?
Explanation opens after your attempt
B. (2n+3)
Concept
These are odd numbers starting from (5), so \(a_n=2n+3\). For (n=1), the first term should be (5).
Why this answer is correct
The correct answer is B. (2n+3). These are odd numbers starting from (5), so \(a_n=2n+3\). For (n=1), the first term should be (5).
Exam Tip
यह (5) से शुरू होने वाली विषम संख्याएं हैं, इसलिए \(a_n=2n+3\)। (n=1) पर पहला पद (5) मिलना चाहिए।
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