anonymous
  • anonymous
Find the derivative of f when f(x) = 2 tan(x) + 3 cot(x)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
cwrw238
  • cwrw238
derivative of tan x is sec^x can't remember derivative of cot x - try googling it first term of derivative is 2 sec^2 x
anonymous
  • anonymous
of cotx? its -csc^2
cwrw238
  • cwrw238
http://www.math.com/tables/derivatives/tableof.htm this link lists derivatives

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More answers

anonymous
  • anonymous
please help
anonymous
  • anonymous
sol: let y=f(x) y=2tan(x)+3cot(x) =2dy/dxtanx+3dy/dxcotx =2*sec^2x+3*-cosec^2x =2sec^2x-3cosec^2x
cwrw238
  • cwrw238
oh ok so f'(x) = 2 sec^2 x - 3 csc^2 x
anonymous
  • anonymous
think they want me to make in ration form its number 3 on the hw i have attached
1 Attachment
anonymous
  • anonymous
is it answer??
anonymous
  • anonymous
thats not one of the answer choices
anonymous
  • anonymous
muhammand please help
anonymous
  • anonymous
estudier please help
anonymous
  • anonymous
are these questions???
anonymous
  • anonymous
yes the document i have attached is the homework i am looking at number 3 specifically
1 Attachment
cwrw238
  • cwrw238
ah what they have done is convert the sec and csc to sin and cos
anonymous
  • anonymous
okay...
anonymous
  • anonymous
so what is the answer
cwrw238
  • cwrw238
2 sec^2 x - 3 csc^2 x = 2 * 1/cos^2 x - 3 * 1 / sin^2 x
cwrw238
  • cwrw238
|dw:1350060084696:dw|
anonymous
  • anonymous
that is not the answer
anonymous
  • anonymous
please help
anonymous
  • anonymous
i have to turn it on in ten minutes
cwrw238
  • cwrw238
well i think it is the answer but its in different form to your choices - i'm trying to figure it out
swissgirl
  • swissgirl
2sec^2(x)-3csc^2(x)?
cwrw238
  • cwrw238
yes - do you agree with that answer?
anonymous
  • anonymous
the answer choices r on the document
anonymous
  • anonymous
swissgirl please help
anonymous
  • anonymous
have attached the hw
1 Attachment
anonymous
  • anonymous
the answer choice are on the paper
cwrw238
  • cwrw238
i know that sandy - but i can't figure out which is equivalent to the sec and csc expression
swissgirl
  • swissgirl
hmm maybe you need to get a common deonmanator
anonymous
  • anonymous
:(
anonymous
  • anonymous
do anyone know the answer
anonymous
  • anonymous
raden please help
anonymous
  • anonymous
due in four minutes
anonymous
  • anonymous
please type faster
anonymous
  • anonymous
i dont need an explainatio just the answer
anonymous
  • anonymous
nvm the hw is past due now :(
cwrw238
  • cwrw238
there might be a mistake in the paper i'm sure 2sec^2x - 3 csc^2 x is correct but u need to convert it
anonymous
  • anonymous
smh wow
cwrw238
  • cwrw238
hold on - i think I've got it
anonymous
  • anonymous
its too late
anonymous
  • anonymous
thank u anyways
swissgirl
  • swissgirl
ohhh I got the answer \( \large {2-5\cos^2(x) \over \sin^2(x)\cos^2(x)} \)
cwrw238
  • cwrw238
yes - i've converted the to sines and cosines but i can't get any of the choices on the paper yes - i got that - but its not one of the choices
swissgirl
  • swissgirl
its the fourth choice
cwrw238
  • cwrw238
oh - i've been looking in the wrong place!!!!!
swissgirl
  • swissgirl
hahah I know its quite confusing to follow
cwrw238
  • cwrw238
lol

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