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Worksheets

Expresii

Total questions: 12

Worksheet time: 9mins

Name
Class
Date
1.

x apartine intervalului (5, 8]

a)

(x < 8) && (x >= 5)

b)

(x <= 8) || (x > 5)

c)

(x > 8) || (x <= 5)

d)

(x <= 8) && (x > 5)

2.

x nu apartine intervalului (2, 9]

a)

(x > 2) && (x <= 9)

b)

(x <= 2) && (x > 9)

c)

(x <= 2) || (x > 9)

d)

(x < 2) || (x > 9)

3.

expresie echivalenta cu ! ( (a <= 3) || (a >= 15) )

a)

( a > 3) || (a < 15)

b)

(a < 3) && (a > 15)

c)

(a > 3) && (a < 15)

d)

! ( a <= 3) || ! (a >= 15)

4.

Completati expresia pentru a fi adevarata:

258 % ? / 10 == 5

(a)  

5.

x nu apartine intervalului (-35, -20) U [17, 100]

a)

(x <= -35) || (x <= 16) || (x >= -20) || (x > 100)

b)

(x <= -35) || (x <= 17) && (x >= -20) || (x >= 100)

c)

(x < -35) || (x > -20) && (x <= 16) || (x > 100)

d)

(x <= -35) || ((x >= -20) && (x < 17)) || (x > 100)

6.

x apartine intervalului (5, 10) U {100}

a)

(x >5) || (x < 10) || (x == 100)

b)

(x > 5) && (x < 10) || (x == 100)

c)

(x > 5) && (x < 10) && (x == 100)

d)

(x > 5) && ((x <= 10) || (x == 100))

7.

x apartine (-inf, -2) U (-1, 50)

a)

(x < -2) || ((x > -1) && (x < 50))

b)

(x < -2) && (x > -1) && (x < 50)

c)

(x > -2) && (x < -1) || (x < 50)

d)

(x <= -2) || (x >= -1) && (x < 50)

8.

Expresia testeaza daca x are ultima cifra diferita de 4 si de 5:

a)

(x % 10 != 4) || (x % 10 != 5)

b)

! (x % 10 == 4) || ! (x % 10 == 5)

c)

(x % 10 == 4) || (x % 10 == 5)

d)

(x % 10 != 4) && (x % 10 != 5)

9.

2b || ! 2b

a)

True

b)

False

10.

x apartine intervalului (0, 5) U [10, 15]

a)

(x >= 0) && (x < 5) || (x > 10) && (x < 15)

b)

(x > 0) && (x <= 5) || (x >= 10) && (x < 15)

c)

(x > 0) && (x < 5) || (x >= 10) && (x <= 15)

d)

(x > 0) && (x < 5) && (x >= 10) && (x <= 15)

11.

x nu apartine intervalului (-10, -5) U (3, 8]

a)

(x < -10) || (x > -5) || (x < 3) || (x >= 8)

b)

(x < -10) || (x > -5) && (x > 3) || (x > 8)

c)

(x <= -10) || ((x >= -5) && (x <= 3)) || (x > 8)

d)

(x < -10) || (x >= -5) || (x > 3) || (x > 8)

12.

Expresia testeaza daca y este un numar par:

a)

(y % 2 == 0)

b)

(y % 2 != 0)

c)

(y > 0) && (y % 2 == 0)

d)

(y > 0) && (y % 2 != 0)