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anonymous
 4 years ago
need help on the attachment
anonymous
 4 years ago
need help on the attachment

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anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0come on no has helped you with this yet?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0should i solve this or go to sleep.....

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0solve before going, please

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Oops! forgot to sleep after going

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay, first things first, lets find the first derivaitve of the function your where given

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0now can you please evaluate: f(pi/4)=9sec^2(pi/4)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0basically to make it more accesible we can write this as: f(pi/4)=9[sec(pi/4)]^2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0further more we can write it as: f(pi/4)=9[1/cos(pi/4)]^2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0then evalutaing we get: f(pi/4)=9[1/sqrt(2)/(2)]^2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what square root 2/2???

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0further: f(pi/4)=9[sqrt(2)]^2 which the gives us: f(pi/4)=9(2), which is 18 Thus f(pi/4)=18

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes, look at the unit circle, at pi/4 or 45 degrees, cos is sqr(2)/2, now if we rationalize the numerator we get just sqrt(2)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0oh, thought your doing sec

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i rewrote secx as 1/cosx

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0just to make is easier for me, but if realise that sec(pi/4) is sqrt(2) then more power to you

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Now we have found the slope (m) of our line, it is 18

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yes, but we will use this form, y=mx+b

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i am getting sleepy lets finish this problem

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0what would be the b in the slope formula

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Now remeber we said, that we have the x coordinate in the beining of pi/4, lets evaluate the orginal function at this point, this will give us the y in our line. f(pi/4)=9tan(pi/4) =9(1) =9 now we have our x which is pi/4, we have our slope which is 18, lets plug this info into our line: 9=18(pi/4)+b this means that b is = to 918pi/4

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0now lets substitute everyting in: y=18x(3618pi)/(4)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0i combined 9 and 18pi/4

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0still don't see how you can 36??

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1316152625201:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you could've just simplify it to 9pi/2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay, then smarty pants do it your way, regardless we came to a correct answer

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0sorry, so the finally would look like this 18x+9(1pi/2)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I just look the answer choices and so which one was the closest, but how come they have it 18x+9(1pi/2) instead of just 18x+9pi/2

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0distribute the negative sign, first

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1316153351852:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0but was there a 918pi/4 at the beginning

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0can you not see it: dw:1316153548845:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I meant why was 918pi/4 at the begginig

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0above i accidentally wrote:y=18x(3618pi)/(4), but is was really suppose to be : y=18x+(3618pi)/(4), sorry about the typo

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay, so can we lay this problem to rest?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0I guess, but still don't get why they have 918pi/4 plug into b instead of just 18pi/4 by itself

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Now remeber we said, that we have the x coordinate in the beining of pi/4, lets evaluate the orginal function at this point, this will give us the y in our line. f(pi/4)=9tan(pi/4) =9(1) =9 now we have our x which is pi/4, we have our slope which is 18, lets plug this info into our line: 9=18(pi/4)+b this means that b is = to 918pi/4

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0dw:1316153804630:dw

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0oh, ok now we can lay this problem to rest, thanks so much for being patience

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0its good you ask questions, i know i can confusing sometimes :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Thanks for giving me a metal

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0yeah I just want to understand the problem instead of just getting the answer

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0because I might see it on the test, but thanks again
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