Question

What is the common difference or common ratio of the sequence 3, 7, 11, 15, ...?

Answer 1

The common difference is the difference between two numbers in an arithmetic sequence.
The common ratio is the ratio between two numbers in a geometric sequence.

Answer 2

formula to find the common difference is\[d=T_2-T_1\]

Answer 3

and for common ratio\[r=\frac{ T_2 }{ T_1 }\]

Answer 4

Let the sequence be 3,7,11,15..as\[T_1,T_2,T_3,T_4,..\]

Answer 5

if the common ratio are equal,therefore,it is a geometric sequence..
if the common difference are equal,it is a arithmetric sequence..

Answer 6

and vice-versa..