Find all of the nonzero 512-point dft coecients x[k]; k = 0; : : : ; 511, of the sequence segment fx[0]; x[1]; x[2]; : : : x[511]g, where x[n] = 5 + 9 cos(19n=256 + =5). express your answers in polar form. (hint: the vast majority of the dft coecients are zero.)

its not b

step-by-step explanation:

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)