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