Using the matrices below, determine if the product of AB is defined. If defined, state its dimensions. a.
not defined
c.
defined, 4 x 2
b.
defined, 2 x 4
d.
defined 3 x 4

Please select the best answer from the choices provided

The answer is, D. defined 3 x 4

Explanation:

But the only problem is, product A is not 3 x 4.

Product A is 2 x 3, so to make this a clear Product B is D. defined 3 x 4 and Product A is A. not defined or alternate answer 2 x 3

c)as speed changes, wavelength and frequency change.

everything changes!

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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