Question

Find any critical numbers of the function.
f(θ) = 10sec θ + 5tan θ, 0 < θ < 2π

Answer 1

HEY

Answer 2

10secxtanx+5sec^2x=0
2tanx=-secx
2sinx=-1
sinx=-1/2
sin^-1(-1/2)=x
x=-pi/6 or 11pi/6

Answer 3

r u sure thats right cause i put it in and it marked it wrong

Answer 4

\[\frac{7\pi}{6},\frac{11\pi}{6}\]