Question

For which operations is the set {0, 1} closed?

Choose all answers that are correct.

A.
multiplication

B.
division

C.
addition

D.
subtraction

Answer 1

@Michele_Laino

Answer 2

@pooja195 @ParthKohli

Answer 3

@Mehek14

Answer 4

@ganeshie8

Answer 5

A

Answer 6

u r sure

Answer 7

since 0*0=0
1*1=1
0*1=0
1*0=0

Answer 8

Choose all answers that are correct.

Answer 9

and c

Answer 10

addition not possible since 1+1=2 not in set

Answer 11

d

Answer 12

99999999999.9999999999999999999999% sure

Answer 13

subtraction not possible 0-1=-1 not in set

Answer 14

b

Answer 15

division not possible 1/0 and 0/0 not difine

Answer 16

then

Answer 17

Choose all answers that are correct.

Answer 18

a and .......

Answer 19

A

Answer 20

and ....

Answer 21

u r sure

Answer 22

can u help me with more

Answer 23

i give U reason for all

Answer 24

yes

Answer 25

ok

Answer 26

Which equations show that the set of whole numbers is closed under addition?

Choose all answers that are correct.

A.
0 + (–1) = –1

B.
1 + 1 = 2

C.
2 + 0 = 2

D.
2 + (–1) = 1

Answer 27

not b

Answer 28

not d

Answer 29

a and c

Answer 30

whole numbers starts from 0,1,2,3......................

Answer 31

b and c

Answer 32

yes

Answer 33

Which sets of numbers are closed under subtraction?

Choose all answers that are correct.

A.
odd natural numbers

B.
rational numbers

C.
{0, 1}

D.
{0, 1, 2}

Answer 34

c and d

Answer 35

why c and d

Answer 36

and a

Answer 37

0-1=-1 which is not in C

Answer 38

best choice

Answer 39

ok

Answer 40

d and a

Answer 41

among all B is correct

Answer 42

and d

Answer 43

not d

Answer 44

closed means all output is in given set

Answer 45

0-2 = -2 not in set D

Answer 46

4 some reasons so only b

Answer 47

yes only B

Answer 48

ok

Answer 49

Numbers p and q are negative integers.

Which statements are always true?

Choose all answers that are correct.

A.
p + q is a negative integer

B.
p • q is a positive integer

C.
p – q is a negative integer

D.
is a negative integer

Answer 50

d p out of Q

Answer 51

a and d

Answer 52

am i correct

Answer 53

addition of two -ve numbers is also -ve

Answer 54

so

Answer 55

multipication of two -ve is +ve number

Answer 56

not b

Answer 57

subtraction of two -ve int. may be -ve or +ve

Answer 58

that is a maybe so no c

Answer 59

so A and B are correct

Answer 60

complete the D part

Answer 61

not b is wrong it will be positive

Answer 62

yes i get it

Answer 63

Is the set of multiples of 4 closed under addition? Explain why or provide a counterexample if not.

A.
Yes, because the sum of any two multiples of 4 is also a multiple of 4.

B.
Yes, because the sum of any two multiples of 4 is also a multiple of 8.

C.
No, and a counterexample is –4 + (–8) = –12.

D.
No, and a counterexample is 26 + 16 = 42.

Answer 64

if p and q are -ve then p+q is -ve , p*q is +ve , p-q may be +ve or -ve

Answer 65

A

Answer 66

not d

Answer 67

ok

Answer 68

26 is not multiple of 4

Answer 69

wait one sec

Answer 70

thanks passed

Answer 71

i will post a new Q

Answer 72

welcome