Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

\[\LARGE f'(x)=x^2+3x \;\; ,\;\; f(1)=5\;\;\;\;\Longrightarrow f(2)=?\] I need some hints

Mathematics
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Join Brainly to access

this expert answer

SIGN UP FOR FREE
f(x) can be obtained by integration........then use f(1) to find value of c, then find f(2)
ya suroj ur correctt
got it?

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

\[\LARGE f(x)=\frac13 x^3 +\frac32 x^2 \;\;\;\;??\]
you left +C at the end
you need to add +C at end because it is integration
indefinite integration
ok but... I need to firnd f(2) then how??
on the second condition when x=1, y=5, you see , put those values and get c
\[\LARGE \int\limits x^2+3x \;dx = \frac13 x^3+\frac32x^2+C\]
put the c back on f(x) and get complete f(x) equation and then find f(2)
yes
correct
how can I know what the value of C is ??
I see it you told me before... let me try, I'll see what I can do :D
see second condition f(1) is 5 than mean when x=1 , y=5
see f(x) is what you get by integration
because you integrate f'(x)
did you catch it?
is C=19/6 ??
I'm still dizzy ! O_O
yes you got it
now put that C back in f(x)
got it?
ahh yeah... now I'll do it thank you very much ;)
no problem lol
\[f \left( x \right) = x ^{2} + 3x\] \[f \left( 1 \right) = 1^{2} + 3 \times 1 = 5\] \[f \left( 2 \right) = 2^{2} + 3 \times 2 = 10\] simple.
@kreshnik another simple way to do something.
@JoshDavoll WRONG... the answer IS \[\frac{71}{6}\] !! Thanks for the help !
hahaha... obviously , you mus be 10-12 years ... LOL

Not the answer you are looking for?

Search for more explanations.

Ask your own question