Answered

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

Verified Answer :

f'(x) = secxtanx
f''(x) = (secx)^3 + (secx)^2*(tanx)^2
Plug in \(\pi\) / 3 and you get 8 + 12 = 20

Check me on that i did it in my head but it should be right

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