Question

If A={a,b,c}, B={c,d,e} then find n(A-B)
Select one:
a. 5
b. 6
c. 2
d. 9​

Answer 1

Answer:

n(A - B) = 2

Option c. is correct

Step-by-step explanation:

We have,

A = {a, b, c}

B = {c, d, e}

Now,

A - B is the set of elements that are present in Set A but not in Set B

Thus,

A - B = {a, b}

Now,

n(A - B) gives the number of elements in the set A - B

We know that,

A - B = {a, b}

So,

n(A - B) = 2

Hence,

Option c. is correct

Hope it helped and believing you understood it........All the best