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

1. C , :

) ,

) ,

, .

2. ?, = = {,}.

3. f : R R?

) ; ) tg x; ) sin x.

4. D I R, f : D R ;

) f()= ;) f()= Ln x; ) f()= b , b > 0 b ? 1.

5. . . : ) o; ) ?

6. f (R), :

) f(x)= x2 "xIR; ) f(x) = (0,3)"xIR; ) f(x)= Cos x "xIR.

7. A = {a, b, c} .

8. (2, -1), (5, 3), (-6, 5) .

9.

.

10. mIN, nIN } ?

11. , :

) | 2 - 7 | <5; ) | 2 - 4 - 5 | > 2 - 4 - 5.

12. f :x = g :y z = 5y .

13. D , :

) = 2; ) = , > 0 ? 1; ) = sin x.



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