Question

Calculati.Va rog mult!!!!

Answer 1

2.

-9 + I -5 I + 3 =

= -9 + 5 + 3

= -4 + 3

= -1

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I 3-5 I - 10 =

= I -2 I - 10

= 2 - 10

= -8

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-3 + I -4-8 I + I -3 + 5 I =

= -3 + I -12 I + I 2 I

= -3 + 12 + 2

= 9 + 2

= 11

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I +4 I - 7 + I -4 I =

= 4 - 7 + 4

= -3 + 4

= 1

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-15 + I -17 + 11 I =

= -15 + I -6 I

= -15 + 6

= -9

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-75 + I -70 + 100 - 5 I =

= -75 + I 25 I

= - 75 + 25

= -50