A binary wave consists of a random sequence of symbols

A binary wave consists of a random sequence of symbols 1 and 0, similar to that described in Example 1.3, with one basic difference: symbol 0 is now represented by a pulse of amplitude A volts and symbol 0 is represented by zero volts. All other parameters are the same as below. Show that for this new random binary wave X (t):
(a) The autocorrelation function is
(b) The power spectral density is, what is the percentages power contained in the DC components of the binarywave?