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?