Question

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

Answer 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

Answer 2

of cotx? its -csc^2

Answer 3

http://www.math.com/tables/derivatives/tableof.htm

this link lists derivatives

Answer 4

please help

Answer 5

sol: let y=f(x)
y=2tan(x)+3cot(x)
=2dy/dxtanx+3dy/dxcotx
=2*sec^2x+3*-cosec^2x
=2sec^2x-3cosec^2x

Answer 6

oh ok

so f'(x) = 2 sec^2 x - 3 csc^2 x

Answer 7

think they want me to make in ration form its number 3 on the hw i have attached

Answer 8

is it answer??

Answer 9

thats not one of the answer choices

Answer 10

muhammand please help

Answer 11

estudier please help

Answer 12

are these questions???

Answer 13

yes the document i have attached is the homework i am looking at number 3 specifically

Answer 14

ah what they have done is convert the sec and csc to sin and cos

Answer 15

okay...

Answer 16

so what is the answer

Answer 17

2 sec^2 x - 3 csc^2 x
= 2 * 1/cos^2 x - 3 * 1 / sin^2 x