Find any relative extrema of the function. (Round your answers to three decimal places.)
f(x) = arcsec(x) − 3x
relative maximum (x, y) = ( )
relative minimum (x, y) = ( )

Question

Find any relative extrema of the function. (Round your answers to three decimal places.) 
f(x) = arcsec(x) − 3x 
relative maximum (x, y)  =  (    )  
relative minimum (x, y)  =  (     )

anonymous · Answer

can someone please help me

dumbcow · Answer

Differentiate the function and set equal to 0
hold on i have to look up the derivative of arcsec

anonymous · Answer

oki please thanx help me:(

dumbcow · Answer

$$d/dx arcsec(x) = \frac{1}{x \sqrt{x^{2}-1}}$$

anonymous · Answer

oki so were setting that to zero..umm how would u solve it from there

dumbcow · Answer

$$\frac{1}{x \sqrt{x^{2}-1}} - 3 = 0$$

dumbcow · Answer

$$\rightarrow x \sqrt{x^{2}-1} = \frac{1}{3}$$

anonymous · Answer

oki and then om gi have 5 mins left:(

dumbcow · Answer

this is timed?
is this a test?

anonymous · Answer

yeh

dumbcow · Answer

haha good luck, this is not the best way to take a test, people aren't going to just give you quick answers, ....plus its kinda cheating

anonymous · Answer

i know but its just this oen problem i have trouble on

dumbcow · Answer

im sure
well i gave you some help, all you have to do now is solve for x

dumbcow · Answer

ill give you next step
square both sides