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anonymous
 5 years ago
Use the equation given below to find f '' (π/3).
f (x) = sec(x)
anonymous
 5 years ago
Use the equation given below to find f '' (π/3). f (x) = sec(x)

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0first find f'(x) this is sec(x)tan(x). then find f''(x). you have to use the product rule to find the second derivative: take the derivative of sec(x) * tan(x) + the derivative of tan(x)*sec(x). once you have this you can just plug in pi/3 and solve.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got 48 but it showed my answer as wrong

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what did you get from the product rule?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I got sec(x)tan(x)tan(x) + sec(x)sec^2(x).

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0... do the product rule and tell me what you get.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0The is because Sec'(x) is sec(x)tan(x) and tan'(x) is sec^2(x)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do i find sec^2(pi/3)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it is the same as sec(pi/3)sec(pi/3) so you should get 2*2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hmmm i got 11. so sec(pi/3) is 2 and tan(pi/3) is (SQRT3)/2. So I got 2*(SQRT3)/2*(SQRT3)/2 + 2*2*2 this simplifies to 3 +8 which is 11

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0isnt tan pi/3 just SQRT 3?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so you would 2*sqrt 3*sqrt3+2*2*2

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oops yes you're right, sorry my trig isnt so great
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