Question

If set A = {x: 2
x
 z, 0 < x < 10}
B = {x: x is one digit prime number} and
C = {x: 3
x
N, x < 12} then A  (BC)

Answer 1

Answer:

f(x)=x

2

f(g(x))=f(2x+1)=(2x+1)

2

∴f(g(x))=4x

2

+4x+1

g

f

(x)=

g(x)

f(x)

=

2x+1

x

2