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anonymous
 one year ago
help please.
Find (f + g)(x), (f  g)(x), (f . g)(x), and (f/g)(x) for each f(x) and g(x).
1. f(x) = a^2  1 , g(x) = a/(a + 1)
(f+g)(x)
(fg)(x)
and
(f/g)(x)
anonymous
 one year ago
help please. Find (f + g)(x), (f  g)(x), (f . g)(x), and (f/g)(x) for each f(x) and g(x). 1. f(x) = a^2  1 , g(x) = a/(a + 1) (f+g)(x) (fg)(x) and (f/g)(x)

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freckles
 one year ago
Best ResponseYou've already chosen the best response.1(f+g)(x) means to add f(x) and g(x)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1(fg)(x) means to take away g(x) from f(x) or just write f(x)g(x)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1(f/g)(x) means to write f(x)/g(x)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok i have a question

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what is wrong with this picture \[f(x) = a^2  1\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1it is a constant function satellite :p example: \[f(x)=2 \\ g(x)=3+x \\ \text{ then } (f+g)(x)=2+(3+x)=5+x \\ \text{ also } (fg)(x)=2(3+x)=x1 \\ \text{ and } (\frac{f}{g})(x)=\frac{2}{3+x}\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0me too if you have a function of x, it should have an x in it

freckles
 one year ago
Best ResponseYou've already chosen the best response.1well are your functions really f(x)=a^21 and g(x)=a/(a+1) ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0don't know does it really say \[f(x)=a^21\] or is it \[f(x)=x^21\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what it says is what it is. I'm just not understanding how to solve it.

freckles
 one year ago
Best ResponseYou've already chosen the best response.1whatever they are just add f(x) and g(x) to find (f+g)(x)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1have you found (f+g)(x)?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0nope I've been trying but i don't know what I'm doing

freckles
 one year ago
Best ResponseYou've already chosen the best response.1do you know how to add f(x) and g(x) that is do you know how to add a^21 and a/(a1) ?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[(f+g)(x)=f(x)+g(x) \\ =a^21+\frac{a}{a1}\] that is it unless you are asked to combine the fractions

freckles
 one year ago
Best ResponseYou've already chosen the best response.1try this one: \[(fg)(x)=f(x)g(x)\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1f(x)=a^21 and g(x)=a/(a1) all you have to do is replace f(x) with a^21 and g(x) with a/(a1)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what exactly am i doing with this? and should the answer be a equation?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i understand none of this and it gets frustrating

freckles
 one year ago
Best ResponseYou've already chosen the best response.1the expression should be an expression of x in this case the expression of x is a constant expression since the expression is really an expression in terms of a

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm attempting to follow

freckles
 one year ago
Best ResponseYou've already chosen the best response.1pretend f(x)=5 and g(x)=6 (f+g)(x)=f(x)+g(x)=5+6=11 you are just replacing f(x) with 5 and g(x) with 6 (fg)(x)=f(x)g(x)=56=1 I just replaced f(x) with 5 and g(x) with 6 (f/g)(x)=f(x)/g(x)=5/6 again I just replaced f(x) with 5 and g(x) with 6

freckles
 one year ago
Best ResponseYou've already chosen the best response.1(f*g)(x)=f(x)*g(x)=5*6=30 again I just replaced f(x) with 5 since in my example I let f(x)=5 and I just replaced g(x) with 6 since in my example I let g(x)=6

freckles
 one year ago
Best ResponseYou've already chosen the best response.1ok now you try finding (fg)(x) for your f(x) and g(x)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1remember (fg)(x) is the same as f(x)g(x)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1just replace f(x) with a^21 and g(x) with a/(a1)
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