A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
Find the following: if f(x) = x²+1 and g(x)=2x3
whats ==> (G*F)(2)
anonymous
 5 years ago
Find the following: if f(x) = x²+1 and g(x)=2x3 whats ==> (G*F)(2)

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(gf) (x) = (x^2+1)(2x3)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0(gf)(2) = 5 other guy doesnt know what hes on botu lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so its 2(x²+1)3 => 2x²+23 ==>(2x²1) ===>(2x²1)(2) =====>(4x²2)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0elecengineer states that g(f(x)) is simply the producy g(x).f(x), which is incorrect. The composition of two functions g(f(x)) is as stated by dipankarstudy. ghhosst seems to be substituting incorrectly. As he states, after simplifying, g(f(x)) = 2x^2  1. Putting x = 2, we get 2(2)^2  1 = (2 times 4)  1 = 7 as derived above by dipankarstudy

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lols whatever guyc newb . I am doind second year engineering noob, i am current on 100% for vector calculus and complex analysis, but you can think what you want

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if they wanted the compositions of function then they would have written g (f(x)) , IN THAT FORM! when someone writes f*g , they have even included the asterick, which denotes multiplication, so if you want to be 100% pedantic ( which I am ) , the asker wants the product of the functions evaluated at 2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, I have seen some people use (g o f ) (x) to represent g(f(x)) , but in this case the asterick was used, suggest a product of functions

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Yes, I see what you mean. It could be that the original poster typed the question slightly differently, thinking that g*f(2) means the same as g(f(2)). Apologies, I didn't mean to be rude.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.