Question

Help with this difficult question

Answer 1

I am with you if you faced any difficulties with that!

Answer 2

I'm pretty sure B is the answer

Answer 3

G(F(x)) = 1/2x

domain: start by assuming all x values are allowed
1) remove any "divide by zero"
2) remove any square root of negative number


you don't have any square roots

but you do have a divide.
you do *not* want the bottom 2x to be 0
so find what x values cause
2x=0

what x is trouble ?

Answer 4

Thats The answer

Answer 5

Not B

Answer 6

D?

Answer 7

Yes it has too be

Answer 8

do you see that all x's (all "real numbers" are ok, except x=0
(because 1/(2*0) becomes 1/0 and we don't allow divide by 0 )

Answer 9

Yes I see that

Answer 10

Well because you allow all real number and you don't want anything to be divided by zero wouldn't the answer be D?

Answer 11

yes. D is the answer

Answer 12

oh look at that

Answer 13

Thank you for explaining @phi