0 reads0 ratings0 helpful
Which is the general term of the geometric progression (27,9,3,1,\ldots)?
Advertisement
Answer and explanation
Correct answer: \(a_n=27\cdot\left(\frac{1}{3}\right)^{n-1}\)
The first term is (27) and the ratio is \(\frac{1}{3}\), so \(a_n=27\cdot\left(\frac{1}{3}\right)^{n-1}\). In exams, use the fractional ratio in a decreasing sequence.
Frequently asked questions
What is the correct answer to this question?
\(a_n=27\cdot\left(\frac{1}{3}\right)^{n-1}\)
Why is this the correct answer?
The first term is (27) and the ratio is \(\frac{1}{3}\), so \(a_n=27\cdot\left(\frac{1}{3}\right)^{n-1}\). In exams, use the fractional ratio in a decreasing sequence.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Sequences and Progressions. Topic: Geometric Progression.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement