Can you say that M bn bn MSolutionYes we can say that M

Solution

Yes, we can say that | M - b_n | = | b_n - M |

As | x | means absolute value of x, | x | = | - x |.

So, for  M > b_{n ,} M < b_n or M = b_n,

| M - b_n | = | b_n - M |

For example, if M = 3 and B = 2,

| M - b_n | = | 3 - 2 | = | 1 | = 1

| b_n - M| = | 2 - 3 | = | - 1 | = 1

Thus, | M - b_n | = | b_n - M |