337
. 3w7T + 4&7T
2 n
u zi = v^5i, 22 — —y/5i- b) 2i = 3 — 2i, 22 = 3 + 2i. c) 21 = 1,
H* = 4+2, 22 = 4 —i, 23 = 2 — i, zą = —2+z. m) 2:1 = 1,22 = —!,
2 = 2, 22 = 1 + i, z3 — 1 — i- b) 21 = —1, 22 = i, 23 = —i.
■ - fe\ fiy /ń
±—(1 + i), 23,4 = ±(1 + 4i). d) 21 = 1, 22 = — +
V
Hk) = z2 (z Bpi) (2 — 1 — i) = 24 — (1 + i)z3 — 2iz2 + (2 — 2i)z, E) = 2(2 - 2i)2(2 - 1 - i) = 24 - (1 + 5i)23 + 4i22 - (4 + 4i)2, Er) = z{z - 2i)(2 - 1 - i)2 = 24 - (2 + 4i)23 + (6i - 4)22 + 4i2.
y/2. >J2 y/2. y/2 y/2 .
■§ —4. b) —5 + 12i. c) 64. d) 1.
r = 2, y = 3. b) rc = 3, 3/ = 1. c) a; = 2, 1/ = 0. d) a; = 1,
B| = 8 cos4 ol — 8 cos2 a + 1.
§r>! hil4g = 4 sin a cos a(l — 2 sin2 a).
o . o
■ bobSo = oos a — 3 sin a cos a.
■•t. selSo. = 3 sin a cos2 a — sin3 a.
3 sin a cos2 a — sin3 a
w ii
— 10 sin3 a cos2 cc + sin5 a.
— 56 sin3 a cos5 a: + 56 sin5 a cos3