Ask your own question, for FREE!
Calculus1 9 Online
OpenStudy (jaweria):

Hello, Can anyone help me with my Calculus question?

OpenStudy (anonymous):

shoot

OpenStudy (jaweria):

ok :)

OpenStudy (jaweria):

\[f ' (x) = 4\sin2x-\sec ^{2}x\]

OpenStudy (jaweria):

Find f (x) when f '(x) is given

OpenStudy (anonymous):

I ask you shoot and then call other for help you hahahaha...

OpenStudy (anonymous):

just take anti derivative or int of that stuff, done

OpenStudy (jaweria):

lolz

OpenStudy (anonymous):

is it not that?

OpenStudy (jaweria):

its integral

OpenStudy (anonymous):

yep. the same meaning,

OpenStudy (jaweria):

oh

OpenStudy (jaweria):

so if you dont mind can you just explain it to me step by step bcoz what ever my proffessor taught I didnt get that

OpenStudy (jaweria):

yeah :(

OpenStudy (anonymous):

explain or give you the stuff how to do it?

OpenStudy (jaweria):

I m actually stuck with Sin and sec thing

OpenStudy (anonymous):

now, take int the function, \[\int\4sin 2x - sec^2 x\]

OpenStudy (anonymous):

separate into 2 parts

OpenStudy (jaweria):

so 4 sin 2x will be 4cos2x?

OpenStudy (anonymous):

nope. it's 4 sin 2x not = 4 cos 2x

OpenStudy (anonymous):

do you know how to take int of those stuff?

OpenStudy (anonymous):

\[\int\4sin2x dx\]= \[4\int\2sinxcosx dx\]

OpenStudy (anonymous):

=\[8\int\sinxcosx dx\]

OpenStudy (anonymous):

let u = sinx ---> du = cosxdx substitute into the int. you have \[8\int\udu\]

OpenStudy (anonymous):

= ? I don't know, you do next

OpenStudy (anonymous):

and then add with the second part which is \[\int\sec^2 xdx\] it has formula to do. Me done here. ok?

OpenStudy (anonymous):

hey, where are you? tell me whether you understand or not???

OpenStudy (anonymous):

|dw:1367195083011:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!