dakotajason27
Evaluate the integral! From 0 to pi/3 of 4sec x tan x dx
Delete
Share
This Question is Closed
dakotajason27
Best Response
You've already chosen the best response.
0
\[\int\limits_{0}^{\pi/3} 4\sec x \tan x\]
coolestkidd
Best Response
You've already chosen the best response.
0
i am helpi u right noe
dakotajason27
Best Response
You've already chosen the best response.
0
Like i get the basic jist of integrals i just get stuck on finding the antiderivative
coolestkidd
Best Response
You've already chosen the best response.
0
oka
anonymous
Best Response
You've already chosen the best response.
0
see if you can think of a function whose derivative is \(\sec(x)\tan(x)\)
anonymous
Best Response
You've already chosen the best response.
0
or look in the book for the derivatives of trig functions. you will see it
coolestkidd
Best Response
You've already chosen the best response.
0
i cant find the anser
dakotajason27
Best Response
You've already chosen the best response.
0
sec 4x and they just applied the chasin rule?
dakotajason27
Best Response
You've already chosen the best response.
0
chain*
anonymous
Best Response
You've already chosen the best response.
0
easier than that
anonymous
Best Response
You've already chosen the best response.
0
if you take the derivative of \(\sec(4x)\) you will get \(4\sec(4x)\tan(4x)\) which is not at all what you want.
just leave the constant alone and take \(4\sec(x)\)
anonymous
Best Response
You've already chosen the best response.
0
plug in \(\frac{\pi}{3}\) plug in \(0\) and subtract
actually forget 0 because \(\tan(0)=0\)
dakotajason27
Best Response
You've already chosen the best response.
0
ok perfect i can do it from here thanks :)
anonymous
Best Response
You've already chosen the best response.
0
yw
dakotajason27
Best Response
You've already chosen the best response.
0
answers 2 right?
coolestkidd
Best Response
You've already chosen the best response.
0
yes