sandy524
Find the derivative of f when
f(x) = 2 tan(x) + 3 cot(x)



This Question is Closed

cwrw238
Best Response
You've already chosen the best response.
1
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

sandy524
Best Response
You've already chosen the best response.
0
of cotx? its csc^2


sandy524
Best Response
You've already chosen the best response.
0
please help

muhammad9t5
Best Response
You've already chosen the best response.
0
sol: let y=f(x)
y=2tan(x)+3cot(x)
=2dy/dxtanx+3dy/dxcotx
=2*sec^2x+3*cosec^2x
=2sec^2x3cosec^2x

cwrw238
Best Response
You've already chosen the best response.
1
oh ok
so f'(x) = 2 sec^2 x  3 csc^2 x

sandy524
Best Response
You've already chosen the best response.
0
think they want me to make in ration form its number 3 on the hw i have attached

muhammad9t5
Best Response
You've already chosen the best response.
0
is it answer??

sandy524
Best Response
You've already chosen the best response.
0
thats not one of the answer choices

sandy524
Best Response
You've already chosen the best response.
0
muhammand please help

sandy524
Best Response
You've already chosen the best response.
0
estudier please help

muhammad9t5
Best Response
You've already chosen the best response.
0
are these questions???

sandy524
Best Response
You've already chosen the best response.
0
yes the document i have attached is the homework i am looking at number 3 specifically

cwrw238
Best Response
You've already chosen the best response.
1
ah what they have done is convert the sec and csc to sin and cos

sandy524
Best Response
You've already chosen the best response.
0
okay...

sandy524
Best Response
You've already chosen the best response.
0
so what is the answer

cwrw238
Best Response
You've already chosen the best response.
1
2 sec^2 x  3 csc^2 x
= 2 * 1/cos^2 x  3 * 1 / sin^2 x

cwrw238
Best Response
You've already chosen the best response.
1
dw:1350060084696:dw

sandy524
Best Response
You've already chosen the best response.
0
that is not the answer

sandy524
Best Response
You've already chosen the best response.
0
please help

sandy524
Best Response
You've already chosen the best response.
0
i have to turn it on in ten minutes

cwrw238
Best Response
You've already chosen the best response.
1
well i think it is the answer but its in different form to your choices  i'm trying to figure it out

swissgirl
Best Response
You've already chosen the best response.
1
2sec^2(x)3csc^2(x)?

cwrw238
Best Response
You've already chosen the best response.
1
yes  do you agree with that answer?

sandy524
Best Response
You've already chosen the best response.
0
the answer choices r on the document

sandy524
Best Response
You've already chosen the best response.
0
swissgirl please help

sandy524
Best Response
You've already chosen the best response.
0
have attached the hw

sandy524
Best Response
You've already chosen the best response.
0
the answer choice are on the paper

cwrw238
Best Response
You've already chosen the best response.
1
i know that sandy  but i can't figure out which is equivalent to the sec and csc expression

swissgirl
Best Response
You've already chosen the best response.
1
hmm maybe you need to get a common deonmanator

sandy524
Best Response
You've already chosen the best response.
0
:(

sandy524
Best Response
You've already chosen the best response.
0
do anyone know the answer

sandy524
Best Response
You've already chosen the best response.
0
raden please help

sandy524
Best Response
You've already chosen the best response.
0
due in four minutes

sandy524
Best Response
You've already chosen the best response.
0
please type faster

sandy524
Best Response
You've already chosen the best response.
0
i dont need an explainatio just the answer

sandy524
Best Response
You've already chosen the best response.
0
nvm the hw is past due now :(

cwrw238
Best Response
You've already chosen the best response.
1
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

sandy524
Best Response
You've already chosen the best response.
0
smh wow

cwrw238
Best Response
You've already chosen the best response.
1
hold on  i think I've got it

sandy524
Best Response
You've already chosen the best response.
0
its too late

sandy524
Best Response
You've already chosen the best response.
0
thank u anyways

swissgirl
Best Response
You've already chosen the best response.
1
ohhh I got the answer
\( \large {25\cos^2(x) \over \sin^2(x)\cos^2(x)} \)

cwrw238
Best Response
You've already chosen the best response.
1
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
Best Response
You've already chosen the best response.
1
its the fourth choice

cwrw238
Best Response
You've already chosen the best response.
1
oh  i've been looking in the wrong place!!!!!

swissgirl
Best Response
You've already chosen the best response.
1
hahah I know its quite confusing to follow

cwrw238
Best Response
You've already chosen the best response.
1
lol