If x, y, z are in A.P. A1 is the mean of x & y and A2 is the mean of y & z. Then prove that the mean of A1 and A2 is y.

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Here, x, y, z are in AP, then

Now, A1 = mean of x and y
Also, A2 = mean of y and z
Now, we have to prove that the mean of A1 and A2 is y.
Hence, proved.

Answered by  | 4th Jun, 2014, 03:23: PM