यदि \(t_1=x\), \(t_n=t_{n-1}+n\) और \(t_5=24\) है, तो (x) का मान क्या होगा?
If \(t_1=x\), \(t_n=t_{n-1}+n\), and \(t_5=24\), what is the value of (x)?
Explanation opens after your attempt
A. दस(10)
Concept
\(t_5=x+2+3+4+5\), so (x=10). In exams, keep the unknown first term separate.
Why this answer is correct
The correct answer is A. दस / (10). \(t_5=x+2+3+4+5\), so (x=10). In exams, keep the unknown first term separate.
Exam Tip
\(t_5=x+2+3+4+5\), इसलिए (x=10) है। परीक्षा में अज्ञात प्रथम पद को अलग रखें।
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