यदि \(a_n=30-4n\) है, तो इस समानांतर श्रेढ़ी का पहला पद क्या है?

If \(a_n=30-4n\), what is the first term of this arithmetic progression?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

B. (26)

Step 1

Concept

For the first term (n=1), so \(a_1=30-4=26\). Do not use (n=0) when finding the first term of a sequence.

Step 2

Why this answer is correct

The correct answer is B. (26). For the first term (n=1), so \(a_1=30-4=26\). Do not use (n=0) when finding the first term of a sequence.

Step 3

Exam Tip

पहले पद के लिए (n=1), इसलिए \(a_1=30-4=26\)। अनुक्रम में पहला पद निकालते समय (n=0) नहीं रखते।

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Mathematics Answer, Explanation and Revision Hints

यदि \(a_n=30-4n\) है, तो इस समानांतर श्रेढ़ी का पहला पद क्या है? / If \(a_n=30-4n\), what is the first term of this arithmetic progression?

Correct Answer: B. (26). Explanation: पहले पद के लिए (n=1), इसलिए \(a_1=30-4=26\)। अनुक्रम में पहला पद निकालते समय (n=0) नहीं रखते। / For the first term (n=1), so \(a_1=30-4=26\). Do not use (n=0) when finding the first term of a sequence.

Which concept should I revise for this Mathematics MCQ?

For the first term (n=1), so \(a_1=30-4=26\). Do not use (n=0) when finding the first term of a sequence.

What exam hint can help solve this Mathematics question?

पहले पद के लिए (n=1), इसलिए \(a_1=30-4=26\)। अनुक्रम में पहला पद निकालते समय (n=0) नहीं रखते।