यदि \(a_n=5n^2-4n\) है, तो \(a_5\) का मान क्या होगा?

If \(a_n=5n^2-4n\), what is the value of \(a_5\)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (105)

Step 1

Concept

(a_5=5(5)2-4(5)=105). Square first, then multiply and subtract.

Step 2

Why this answer is correct

The correct answer is C. (105). (a_5=5(5)2-4(5)=105). Square first, then multiply and subtract.

Step 3

Exam Tip

(a_5=5(5)2-4(5)=105)। पहले वर्ग करें फिर गुणा और घटाव करें।

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FAQs

Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=5n^2-4n\) है, तो \(a_5\) का मान क्या होगा? / If \(a_n=5n^2-4n\), what is the value of \(a_5\)?

Correct Answer: C. (105). Explanation: (a_5=5(5)2-4(5)=105)। पहले वर्ग करें फिर गुणा और घटाव करें। / (a_5=5(5)2-4(5)=105). Square first, then multiply and subtract.

Which concept should I revise for this Mathematics MCQ?

(a_5=5(5)2-4(5)=105). Square first, then multiply and subtract.

What exam hint can help solve this Mathematics question?

(a_5=5(5)2-4(5)=105)। पहले वर्ग करें फिर गुणा और घटाव करें।