mirea-projects/First term/Informatics/IT-5.md
2024-09-24 02:22:33 +03:00

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Рабочая тетрадь № 5

Задачи № 1

№ 1

¬( ( x ∧ y )  ̅z ) ≡ ¬( z → x )  ¬( z → y )
¬( x ∧ y ) ∧ z ≡ ¬( ̅z  x )  ¬( ̅z  y )
( ̅x  ̅y ) ∧ z ≡ ( z ∧ ̅x )  ( z ∧ ̅y )
( ̅x  ̅y ) ∧ z ≡ z ∧ ( ̅x  ̅y )
( ̅x  ̅y ) ∧ z ≡ ( ̅x  ̅y ) ∧ z

№ 2

¬( ( x ∧ y )  ̅z) ≡ ¬( z → x )  ¬( z → y )

x y z  f1 f2 
0 0 0  0  0
0 0 1  1  1
0 1 1  1  1
0 1 0  0  0
1 0 0  0  0
1 0 1  1  1
1 1 0  0  0
1 1 1  0  0

№ 3

F(x,y,z) = ( ̅z → x ) ↔ ( ̅x │ y )

x y z  f
0 0 0  0
0 0 1  1
0 1 1  0
0 1 0  1
1 0 0  1
1 0 1  1
1 1 0  1 
1 1 1  1

ДНФ: ( y ∧ ̅z )  ( ̅y ∧ z )  x 
КНФ: ( x  ̅y  z ) ∧ ( x  y  z )

№ 4

A = ( x → y ) ∧ ( x → ̅y ) ∧ x 
A = ( ̅x  y ) ∧ ( ̅x  ̅y ) ∧ x 
A = ( ̅x  ( y ∧ ̅y ) ) ∧ x 
A = ( ̅x  0 ) ∧ x 
A = ̅x ∧ x 
A = 0

Задачи № 2

№ 1

1) x ∧ y  x ∧ y  ̅x ∧ ̅y
   ( x ∧ y )  ( ̅x ∧ ̅y )
   ( x ∧ y )  ( ̅x ∧ ̅y )
   x ↔ y
2) ( x  ̅y ) ∧ ( ̅x  y ) ∧ ( ̅x  ̅y )
   ( x  ̅y ) ∧ ̅x
   ( x ∧ ̅x )  ( ̅y ∧ ̅x )
   0  ¬( y ∧ x )
   y | x

№ 2

( x1  x2  x3 ) ∧ ( ̅x1  ̅x2  x3 ) ∧ ( x1  x2  ̅x3 ) ∧ ( ̅x1  ̅x2  ̅x3 ) 

№ 3

1) ( x  ̅x )
2) ( ̅x ∧ ̅y )  ( x ∧ y )  ( ̅x ∧ y )  ( x ∧ ̅y )

№ 4

1) ( x ∧ ̅x )
2) ( ̅x  ̅y ) ∧ ( x  y ) ∧ ( ̅x  y ) ∧ ( x  ̅y )

№ 5

НФ: ( x ∧ y ∧ z )  ( ̅x ∧ y ∧ z )  ( ̅x ∧ ̅y ∧ z ) 
CКНФ: ( x  y  z ) ∧ ( x  ̅y  z ) ∧ ( ̅x  y  z ) ∧ ( ̅x  y  ̅z ) ∧ ( ̅x  ̅y  z )

Тест № 5

  1. 4
  2. 1
  3. 1
  4. 2
  5. 1
  6. 3
  7. 4
  8. 2
  9. 2
  10. 4

Задачи № 3

№ 1

a = int(input())
if 100 <= a < 1000 and a % 5 == 0:
    print("Является")
else:
    print("Не является")

№ 2

a = int(input())
b = int(input())
c = int(input())

if (a % 2) + (b % 2) + (c % 2) <= 1:
    print("2 и более")
else:
    print("Меньше 2")

№ 3

x, y = float(input()), float(input())

if (x >= 0 and x**2 + y**2 <= 1) or (y <= 1 and x >= 0 and y >= x - 1):
    print("Yes")
else:
    print("No")

№ 4

import math as m


x, y = float(input()), float(input())

if (y <= m.sin(x) and 0 <= y <= 0.5 and 0 <= x <= m.pi):
    print("Yes")
else:
    print("No")

№ 5

x, y = float(input()), float(input())
if (x <= 0 and x**2 + y**2 <= 1) or (x**2 + y**2 <= 1 and y >= x):
    print("Yes")
else:
    print("No")

Задачи № 4

№ 1

# 3
x, y = float(input()), float(input())

if (x >= 0 and x**2 + y**2 <= 1) or (y <= 1 and x >= 0 and y >=// x - 1):
    print("Yes")
else:
    print("No")

# 4
import math as m


x, y = float(input()), float(input())

if (y <= m.sin(x) and 0 <= y <= 0.5 and 0 <= x <= m.pi):
    print("Yes")
else:
    print("No")

# 5
x, y = float(input()), float(input())
 
if (x <= 0 and x**2 + y**2 <= 1) or (x**2 + y**2 <= 1 and y >= x):
    print("Yes")
else:
    print("No")