TA CÓ SINΑT ↔ 2 2Α++Α2Z2 = 2 2 2(Z)Z +ΑΠ - ARCTGZ) Π - ARCTGZ SU...
2. Ta có sinαt ↔
2
2
α+2
z2
=2
2
2
(z)z +απ - arctgz) π - arctgz suy ra sit =∫
t
ττ τd = 1(sin ↔∫
∞
ζ ζ+t2
2
α+2
z2
=2
2
2
(z)z +απ - arctgz) π - arctgz suy ra sit =t
ττ τd = 1(sin ↔∞
ζ ζ+t