D.C. component of the waveform shown below is

Average value = D.C. component of wave

=	1			f(t) dt =	1		²	f(t) dt
	T		_T		2		₀

=	1			¹	(2) dt +		²	(–2) dt
	2			₀			₁

=	1	[(2t)¹₀ + (–2t)²₁]
	2

=	1	[2 – 4 + 2] = 0
	2