Suppose we have a signal x left square bracket n right square bracket equals left square bracket 1 comma space minus 1 comma space 1 comma space minus 1 comma space 1 comma space minus 1 comma space 1 comma space minus 1 right square bracket with n element of left curly bracket 0 comma 1 comma... right curly bracket. If we downsample x left square bracket n right square bracket by a factor of 2 would the resulting signal be high or low frequency signal?

wello

Step-by-step explanation:

false.

step-by-step explanation:

false.

cavalieri's principle makes that statement about the volumes, not about the areas.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.