Question

1. f(x)=x^2; g(x)=1/√x
a. f+g
b.f-g
c.f*g
d.f/g
e.g/f

Answer 1

what do you want to find up?

Answer 2

Define the following functions

Answer 3

you meant domain?

Answer 4

i dont know.. that was the only instruction given sir..

Answer 5

\[\Large f(x)=x^2\]\[\Large g(x)=\frac1{\sqrt x}\]

Answer 6

This stuff is actually pretty straightforward.
I'll do the first one to give you an idea...
f+g

Just outright add the two functions, no biggie XD
\[\Large f+g = x^2 +\frac1{\sqrt x}\]

Answer 7

nothing will be add?

Answer 8

There's no way to simplify this, as far as I know.

Answer 9

same goes with b?

Answer 10

Same goes with all of them, actually, just perform the indicated operation ^^

Answer 11

What's your answer to b?

Answer 12

x^2+1/√x

Answer 13

That's the answer to a.
But what about b?

Answer 14

x^2-1/√x ? xD

Answer 15

\[\Large f-g = x^2 - \frac1{\sqrt x }\]
correct :P

Answer 16

c ?

Answer 17

x^2 * 1/√x ? xD

Answer 18

\[\Large x^2 \cdot \frac1{\sqrt x}\]
But this can be simplified into just one fraction, no?
In fact, it doesn't even have to be a fraction :D

Answer 19

uhh?

Answer 20

how come?

Answer 21

oohh.. i see,.. it this right?