Question

What is the common ratio of the following sequence?
7, 21, 63, 189

Answer 1

If i am right then it is 21 / 7 = 3 ..... 63 / 21 = 3

Answer 2

Hence the common ratio of the following sequence will be 3

Answer 3

\[r = \frac{a_2}{a_1}\]
that just means common ratio is second term divided by first term

Answer 4

It is called geometric progression ..

got it @alexzndrac ?????

Answer 5

okay thanks you guys

Answer 6

No problem best of luck

:)

Answer 7

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http://openstudy.com/code-of-conduct for more information ..

thanks!!!

Answer 8

\[7 \times 3^{x}\] is the equation btw.