यदि गुणोत्तर श्रेढ़ी में \(a_2=18\) और (r=2) है, तो \(a_5\) क्या होगा?
If a geometric progression has \(a_2=18\) and (r=2), what will \(a_5\) be?
Explanation opens after your attempt
C. (144)
Concept
\(a_5=a_2r^3=18\cdot2^3=144\). To move forward from a given term, use the correct power of the ratio.
Why this answer is correct
The correct answer is C. (144). \(a_5=a_2r^3=18\cdot2^3=144\). To move forward from a given term, use the correct power of the ratio.
Exam Tip
\(a_5=a_2r^3=18\cdot2^3=144\)। दिए हुए पद से आगे जाने के लिए अनुपात की सही घात लगाएं।
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