Thread: Find Range and Domain!?!?!?!?

ok i dont actually know how to find the range and domain of a function so could anyone please show me how, and also this is my question that needs answering please.

f:x = 2x + ln2
g:x = e^(2x)

gf:x = 4e^(4x), (x E R)

the question asks to find the range of gf.


Part (c) is write down the range and domain of: ln(4-2x)

Originally Posted by Stylis10

ok i dont actually know how to find the range and domain of a function so could anyone please show me how, and also this is my question that needs answering please.

f:x = 2x + ln2
g:x = e^(2x)

gf:x = 4e^(4x), (x E R)

the question asks to find the range of gf.

The range of is . The range is essentially the range of and we know that e^t is always positive.

Part (c) is write down the range and domain of: ln(4-2x)

is defined only when , using this we can say the domain is . Thus the range is .

Originally Posted by Isomorphism

The range of is . The range is essentially the range of and we know that e^t is always positive.




is defined only when , using this we can say the domain is . Thus the range is .

thans that helped alot