Question

Oblicz:

a) (- 6 i 1/2) + 3 i 2/3

b) - 7 - ( 3 i 4/5)

c) (-2 i 1/3) * (9/14)

d) 1/6 * (70*0,1 - 8 i 1/2) =

e) -8-(-17)=

Daje naj.

Answer 1

a. -2 i 5/6

b.-10 i 4/5

c. 1,5

d. - 0,25

3. 9

Answer 2

a)  (-6 i 1/2) + 3 i 2/3 = (-6 i 3/6) + 3 i 2/3 = -2 i 5/6

b)  -7 -(3 i 4/5) = - 10 i 4/5

c)  (-2 i 1/3) * (9/14) = ( - 7/3) * (9/14) = - 63/42

d) 1/6 * (70*0,1 - 8 i 1/2) = 1/6 * (7 - 8 i 1/2) = 1/6 * (- 1 i 1/2)= 1/6 * (- 2/3)= (-2/18)

e) -8-(-17)= -8 + 17 = 9