Calculus1
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OpenStudy (jaweria):
Hello, Can anyone help me with my Calculus question?
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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...
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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,
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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
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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?
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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?
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OpenStudy (anonymous):
hey, where are you? tell me whether you understand or not???
OpenStudy (anonymous):
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