If $m, x, n$ $m, x, n$ are in an arithmetic sequence, find the value of $x$ $x$ ?

Question

2617 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-09-25T04:47:08

$x = \frac{m + n}{2}$ $x=(m+n)/2$

AS the sequence $m, x, n$ $m, x, n$ is an arithmetic sequence, we have

$x - m = n - x$ $x-m=n-x$

or $2 x = m + n$ $2x=m+n$

i.e. $x = \frac{m + n}{2}$ $x=(m+n)/2$

If m, x, nm,x,nm, x, n are in an arithmetic sequence, find the value of xxx?