Comment on the next question when the teacher calls on you while you're asleep and you answer correctly
Bubs@lemmy.zip 12 hours agoI can mostly get it. I would probably have to see examples in practice to fully grasp it.
Comment on the next question when the teacher calls on you while you're asleep and you answer correctly
Bubs@lemmy.zip 12 hours agoI can mostly get it. I would probably have to see examples in practice to fully grasp it.
renormalizer@feddit.org 11 hours ago
It’s a sequence of numbers where the next number is a fixed multiple of the previous one.
1 2 4 8 16 32 … Is a sequence with a ratio of 2.
96 48 24 12 6 3 … Is the sequence from the question with a ratio of 1/2. You see that elements 2 and 4 (counting from zero) sum to 30 and elements 3 and 5 sum to 15.
In general, the sequence can be expressed as a_k = c r^k for some starting value c and the ratio r.