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hba
 3 years ago
Checking my answers
if f(x)=x^39x^2+15x+3
What is the relative maxima ?
hba
 3 years ago
Checking my answers if f(x)=x^39x^2+15x+3 What is the relative maxima ?

This Question is Closed

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1It will be right as it is calculated by the Great @hba ha ha ha..

hba
 3 years ago
Best ResponseYou've already chosen the best response.0I have more question to get checked can i ask here or in a new post.

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1I don't know how to solve these types of questions.. Can you teach me how to solve it..??

hba
 3 years ago
Best ResponseYou've already chosen the best response.0@waterineyes Ha Ha Ha Nice joke,first let me ask my questions.

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1First, we will take derivative.. Right??

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1So wait, I am doing it..

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1f'(x) = 3x^2  18x + 15

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0there are two extrema, 1 relative maximum and 1 relative minimum.

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Should I factorize it??

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Yes I mean the same..

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1\[x^2  6x + 5 = 0 \implies (x  5)(x  1) = 0\]

hba
 3 years ago
Best ResponseYou've already chosen the best response.0Now put 1 in the orignal equation.

hba
 3 years ago
Best ResponseYou've already chosen the best response.0Because we are finding the relative maxima

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0oooh, i misread the problem. relative maxima.

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1So, we have to put smaller value??

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Just checking your answer.. Ha ha ha..

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Now don't say, to find relative minima, we will put 5..

hba
 3 years ago
Best ResponseYou've already chosen the best response.0@waterineyes Check these two questions.

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1How to solve these now??

hba
 3 years ago
Best ResponseYou've already chosen the best response.0I got f'(x)=e in both the cases.

hba
 3 years ago
Best ResponseYou've already chosen the best response.0And f''(x)=1/e for 1st and f''(x)=e in the 2nd one.

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Are you sure it is e ??

hba
 3 years ago
Best ResponseYou've already chosen the best response.0Pretty sure Because i did this one like 100 times when i was in High school

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1You have used division rule here??

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1For first : \[f'(x) = \frac{1  \ln(x)}{x^2}\]

hba
 3 years ago
Best ResponseYou've already chosen the best response.0The most intelligent @waterineyes

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Not intelligent as you @hba

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Now, find the second derivative..

hba
 3 years ago
Best ResponseYou've already chosen the best response.0I am getting something,which looks extremly wrong :/

hba
 3 years ago
Best ResponseYou've already chosen the best response.0@waterineyes Here you go \[f''(x)=x2x+2lnx/x^4\] I kow it's wrong :/

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Sorry busy helping other person..

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Now I think, if it was e then it will be simpler..

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Wait, let me check..

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1You can add first two terms in the numerator..

hba
 3 years ago
Best ResponseYou've already chosen the best response.0Yeah i can add them so, \[f''(x)=3x+2lnx/x^2\]

hba
 3 years ago
Best ResponseYou've already chosen the best response.0@waterineyes Ansoo kahan ho tum ?

hba
 3 years ago
Best ResponseYou've already chosen the best response.0@waterineyes Answer tau sahi hai mera,Is ki working mushkil hai :/

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Now what to do next??

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1I had a guest in home so busy there.. Sorry, let us now work together..

hba
 3 years ago
Best ResponseYou've already chosen the best response.0@waterineyes Where should i continue ?

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1What we will do next after finding second derivative?? To find extreme value..

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1Where are we going?? Is that right??

hba
 3 years ago
Best ResponseYou've already chosen the best response.0i think we should skip these lol,I am pretty sure about my answers :) Do you know what is a stationary point ?

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1The point which is stationary is called Stationary Point, that's it..!!!

hba
 3 years ago
Best ResponseYou've already chosen the best response.0So, if f(x)=ln(1+x^2) What will be the stationary point ?

waterineyes
 3 years ago
Best ResponseYou've already chosen the best response.1I think I should go now.. Ha ha ha.. Seriously, don't know..
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