5, 9 out of 2, 13 out of 4, 17 out of 8

5, 9 out of 2, 13 out of 4, 17 out of 8

5, 9 out of 2, 13 out of 4, 17 out of 8,
Namely
5 out of 1, 9 out of 2, 13 out of 4, 17 out of 8,
The denominator is an equal ratio sequence, and the nth term is the N-1 power of 2
The numerator is an arithmetic sequence, and the nth term is 4N + 1
therefore
The general formula is
N-1 power of an = 2 [4N + 1]

5 / 6 × 2 / 3 (5 / 6 × 3)

The quotient of 2 divided by 5 * 3 of 6 divided by the quotient of 6 divided by the product of 5 * 3; the quotient of 5 / 6 and 2 / 3 divided by 5 * 3 divided by 6; the product of 5 / 6 and 2 / 3 divided by 5 / 6 multiplied by 3; the quotient of 2 divided by 5 * 3 of 6 divided by 5 / 6 multiplied by 3 of 6

What is the difference by difference formula in senior one physics

The difference of adjacent displacements in the same time is equal to a constant -- at ^ 2
S2-S1=S3-S2=、、、、、=aT^2