समानांतर श्रेढ़ी \(21,28,35,42,\ldots\) का सामान्य पद कौन-सा है?

What is the general term of the arithmetic progression \(21,28,35,42,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

A. \(a_n=7n+14\)

Step 1

Concept

The first term is (21) and (d=7), so (a_n=21+(n-1)7=7n+14). You can also check an option by putting (n=1).

Step 2

Why this answer is correct

The correct answer is A. \(a_n=7n+14\). The first term is (21) and (d=7), so (a_n=21+(n-1)7=7n+14). You can also check an option by putting (n=1).

Step 3

Exam Tip

पहला पद (21) और (d=7) है इसलिए (a_n=21+(n-1)7=7n+14)। विकल्प को (n=1) रखकर भी जांच सकते हैं।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

समानांतर श्रेढ़ी \(21,28,35,42,\ldots\) का सामान्य पद कौन-सा है? / What is the general term of the arithmetic progression \(21,28,35,42,\ldots\)?

Correct Answer: A. \(a_n=7n+14\). Explanation: पहला पद (21) और (d=7) है इसलिए (a_n=21+(n-1)7=7n+14)। विकल्प को (n=1) रखकर भी जांच सकते हैं। / The first term is (21) and (d=7), so (a_n=21+(n-1)7=7n+14). You can also check an option by putting (n=1).

Which concept should I revise for this Mathematics MCQ?

The first term is (21) and (d=7), so (a_n=21+(n-1)7=7n+14). You can also check an option by putting (n=1).

What exam hint can help solve this Mathematics question?

पहला पद (21) और (d=7) है इसलिए (a_n=21+(n-1)7=7n+14)। विकल्प को (n=1) रखकर भी जांच सकते हैं।