Question

Find the octants in which the points (1, 2, 3) and (4, -2, -5) lie​

Answer 1

3D Geometry:

Explanation:

• Three-dimensional space is a geometric setting in within which three values are required to determine the position of an element.

• In geometry, a three-dimensional shape has three dimensions – length, width, and height.

• Octant is divided into 8 quadrants.

• For these quadrants, the specific signs( +, -) are assigned.  

• Using these signs we can determine the position of points.

Now,

1)

for points (1, 2, 3):

x = +, y =+, z = +

Hence points (1, 2, 3) are lies in I quadrant.

2)

for points (4, -2, -5) :

x = +, y = -, z = -

Hence points (4, -2, -5) are lies in the VIII quadrant.

Answer 2

Step-by-step explanation:

I hope for its help for you