Question

a) -6 i 2/5 - 4 i 7/10

b) -8 i 1/6 + 2 i 2/3

c) 4 i 3/4 - 1 i 7/8

d) 4 i 4/9 + (-1 i 5/6)

e) 4 i 4/9 * (-3 i 3/8)

f) (-8 i 2/3) : (-1 i 4/9)

g) -6 i 1/2 - 2 i 2/3 : (-2/9)

h) -5 i 5/9 : (5 i 5/6 - 10)

Answer 1

a) -6 i 2/5 - 4 i 7/10 = -6 i 4/10 - 4 i 7/10 = -10 i 11/10= 11 i 1/10

b) -8 i 1/6 + 2 i 2/3 = -8 i 1/6 + 2 i 4/6 = -5 i 3/6

c) 4 i 3/4 - 1 i 7/8 = 6 i 6/8 - 1 i 7/8 = 3 i 14/8 - 1 i 7/8 = 2 i 7/8

d) 4 i 4/9 + (-1 i 5/6) = 4 i 8/18 + (-15/18) = 3 i 11/18

e) 4 i 4/9 * (-3 i 3/8) = 40/9 * (-27/8) = -15

f) (-8 i 2/3) : (-1 i 4/9) = (-26/3) * (-9/13) = 6

g) -6 i 1/2 - 2 i 2/3 : (-2/9) = -6 i 1/2 - 8/9 * (-9/2) = -6 i 1/2 + 4 = -2 i 1/2

h) -5 i 5/9 : (5 i 5/6 - 10) = -50/9 * (-6/25)= 4/3= 1 i 1/3

 

 :)