Question

Oblicz:

a)1,6 * (+2i1/4)

b)(3,24-2,06) * 5,2

c) 7-3i3/7

_______

2i2/21

d)14,52:0,6 - 30

Answer 1

a) \frac{16}{10}  * \frac{9}{4}= \frac{144}{40} = 3,6

Answer 2

a)1,6 * (+2¼) = 1,6 * 2,25 = 3,6

b)(3,24-2,06) * 5,2 = 1,18 * 5,2 = 6,136

c)   7-3i3/7       3 i 4/7

_______   =  ______   =  3 i 4/7 : 2 i 2/21 = 1 i 27/43

2i2/21       2 i 2/21

d)14,52:0,6 - 30 = 24,2 - 30 = - 5,8

Answer 3

a)1,6 * (+2i1/4) =
= 1,6 * 2,25 =
= 3,6
----------------------------

b)(3,24-2,06) * 5,2 =
= 1,18 * 5,2 =
= 6,136
---------------------------

c) 7-3i3/7

_______ =

2i2/21

6 i 7/7 - 3 i 3/7
= __________________ =
2 i 2/21

3 i 4/7
= _____________ =
2 i 2/21

= 25/7 : 44/21 =
= 25/7 * 21/44 =

= 75/44 =
= 1 i 31/44
---------------------------------------------------------

d)14,52 :0,6 - 30 =
= 24,2 - 30 =
= -5,8