1. Exercise 4. , 3.
  2. Grammatische und lexikalische Ubungen.
  3. II. .
  4. II.
  5. II.
  6. II.
  7. II.

1. , ' .

2. Q , ?

3. Q, :

) , - ?

) - , - ?

4.

5.

(1 + i) x2+ (2+ i) x - (1 - i)y = 7 (1+ i).

6. ? z = 3+ i2 . .

7. :

8. :

) 2x2 - 3x+ 7 =0,)cos x =3, )sin x = 2.

9. z8-2 z4+ 4 = 0 .

10. :

1+ i, -1+ i, -5, + I.

11. 36+23-2 +5 22+3 .

12. =1

f (x) =35 - 84+43 + 62 - 7 + 2

R.



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