Question

Найти |c-b| Если с= (0;5;-5) b=(-4;1;2)

Answer 1

С-в=(0+4;5-1;-5-2)=(4;4;-7).
|с-в|=√(4²+4²+(-7)²)=√(16+16+49)=√81=9.

Answer 2

To find the magnitude of the difference between two vectors, you can follow these steps:

Step 1: Calculate the difference vector (d) between vectors c and b: d = c - b

Step 2: Calculate the magnitude of the difference vector (|d|): |d| = √(d1^2 + d2^2 + d3^2)

Let's calculate it:

Step 1: d = c - b = (0 - (-4); 5 - 1; -5 - 2) = (4; 4; -7)

Step 2: |d| = √(4^2 + 4^2 + (-7)^2) = √(16 + 16 + 49) = √81 = 9

So, |c-b| = 9.