Question 7 - Union (A U B), intersection (A n B), difference (A - B), complement (A') Practice

Question 7

00:00Est. 3 min

Marks:+5.000.00

NOTE: Enter your answer to the nearest integer. Let

A

be the set of all points on the curve defined by the function

f_1(x)=x^2-x-30

and let

B

be the set of all points on the curve

f_2

defined by the reflection of the curve

f_1

with respect to

X

-axis. If

C

is the set of all points on the axes (i.e.,

x

and

y

axis) then find the cardinality of set

D

where

D=(A\cap B)\cup(A\cap C)\cup(B\cap C)

Integer answer

Medium Difficulty

16 October 2022

Your answer