यदि \(a_1=18\) और (d=-4) है, तो पहले (8) पदों में कितने धनात्मक पद होंगे?
If \(a_1=18\) and (d=-4), how many positive terms are there among the first (8) terms?
Explanation opens after your attempt
B. (5)
Concept
The terms are \(18,14,10,6,2,-2,\ldots\), so there are (5) positive terms. Do not count zero or negative terms as positive.
Why this answer is correct
The correct answer is B. (5). The terms are \(18,14,10,6,2,-2,\ldots\), so there are (5) positive terms. Do not count zero or negative terms as positive.
Exam Tip
पद \(18,14,10,6,2,-2,\ldots\) हैं, इसलिए धनात्मक पद (5) हैं। शून्य और ऋणात्मक पदों को धनात्मक न मानें।
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