أبغى حل هذي الثلاث تمارين من ماث 251 قبل يوم الأربعاء الله ينور بصيرتكم

[miss-one]

36.

What is the value of x after each of these statements is
encountered in a computer program, if x = 1 before the
statement is reached?

a

) if 1 + 2 = 3 then x := x + 1

b)

if ( 1 + 1 = 3) OR (2 + 2 = 3) then x := x + 1

c)

if (2 + 3 = 5) AND (3 + 4 = 7) then x := x + 1

d)

if ( 1 + 1 = 2) XOR ( 1 + 2 = 3) then x := x + 1

e

) if x < 2 then x := x + 1

37.

Find the bitwise OR, bitwise AND, and bitwise XOR of
each of these pairs of bit strings.

a

) 1 0 1 1 1 1 0, 0 1 0 000 1

b)

1 1 1 1 0000, 1 0 1 0 1 0 1 0

c)

00 0 1 1 1 000 1 , 1 0 0 1 00 1 000

d)

1 1 1 1 1 1 1 1 1 1 , 00 0000 0000

38.

Evaluate each of these expressions.

a

) I 1 000 /\ (0 1 0 1 1 v 1 1 0 1 1 )

b )

(0 1 1 1 1 /\ 1 0 1 0 1 ) v 0 1 000

c)

(0 1 0 1 0 tIJ 1 1 0 1 1 ) tIJ 0 1 000

d) ( 1 1 0 1 1 v 0 1 0 1 0) /\ ( 1 000 1 v 1 1 0 1 1 )