नियम \(a_n=20-2n\) से पहला पद \(a_1\) क्या होगा?

Using \(a_n=20-2n\), what will the first term \(a_1\) be?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (18)

Step 1

Concept

Putting (n=1), \(a_1=20-2=18\). The first term is found by using (n=1).

Step 2

Why this answer is correct

The correct answer is C. (18). Putting (n=1), \(a_1=20-2=18\). The first term is found by using (n=1).

Step 3

Exam Tip

(n=1) रखने पर \(a_1=20-2=18\) है। पहला पद हमेशा (n=1) से मिलता है।

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Mathematics Answer, Explanation and Revision Hints

नियम \(a_n=20-2n\) से पहला पद \(a_1\) क्या होगा? / Using \(a_n=20-2n\), what will the first term \(a_1\) be?

Correct Answer: C. (18). Explanation: (n=1) रखने पर \(a_1=20-2=18\) है। पहला पद हमेशा (n=1) से मिलता है। / Putting (n=1), \(a_1=20-2=18\). The first term is found by using (n=1).

Which concept should I revise for this Mathematics MCQ?

Putting (n=1), \(a_1=20-2=18\). The first term is found by using (n=1).

What exam hint can help solve this Mathematics question?

(n=1) रखने पर \(a_1=20-2=18\) है। पहला पद हमेशा (n=1) से मिलता है।