Which sequence is formed with (a=9) and (d=-2)?
Answer and explanation
Correct answer: (9, 7, 5, 3, \ldots)
The first term of the AP is 9 and the common difference is -2. Therefore, 2 is subtracted to get each next term: 9, 7, 5, 3, \ldots. Hence, option B is correct. Option D also has common difference -2, but its first term is 7, not 9. Exam tip: check the first term first, then find the difference between consecutive terms.
Frequently asked questions
What is the correct answer to this question?
(9, 7, 5, 3, \ldots)
Why is this the correct answer?
The first term of the AP is 9 and the common difference is -2. Therefore, 2 is subtracted to get each next term: 9, 7, 5, 3, \ldots. Hence, option B is correct. Option D also has common difference -2, but its first term is 7, not 9. Exam tip: check the first term first, then find the difference between consecutive terms.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Arithmetic Progressions (AP). Topic: Introduction to APs and common difference..
Student feedback
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
