Insert three geometric menas between the numbers 1 and 256.

Insert three numbers between the numbers 1 and 256 so that the resulting sequence is a G.P.

Insert 4 geometric means between 6 and 192.

Insert 6 arithmetic means between 3 and 24.

Insert 5 arithmetic means between 8 and 26.

The geometric mean between -9 and -16 is

If the harmonic mean between two positive numbers is to their geometric mean as 12: 13. then the numbers are in the ratio

Find n such that (a^n+b^n)/(a^(n-1)+b^(n-1)) may be the geometric mean between two quantities a and b.

Insert 10 arithmetic means between 2 and 57.

Insert 3 arithmetic means between : 5 and 21.