यदि \(a_n=25-3n\) है, तो पहला ऋणात्मक पद कौन-सा है?
If \(a_n=25-3n\), which is the first negative term?
Explanation opens after your attempt
C. (9)वाँ(9)th
Concept
\(a_8=1\) and \(a_9=-2\), so the first negative term is the (9)th. Look for the first term below zero.
Why this answer is correct
The correct answer is C. (9)वाँ / (9)th. \(a_8=1\) and \(a_9=-2\), so the first negative term is the (9)th. Look for the first term below zero.
Exam Tip
\(a_8=1\) और \(a_9=-2\), इसलिए पहला ऋणात्मक पद (9)वाँ है। शून्य से नीचे जाने वाला पहला पद देखें।
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