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Find the derivative of f when f(x) = 2 tan(x) + 3 cot(x)

Mathematics
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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
of cotx? its -csc^2
http://www.math.com/tables/derivatives/tableof.htm this link lists derivatives

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Other answers:

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

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