Sketch the graph of f by hand and use your sketch to find the absolute and local maximum and minimum values of f. (If an answer does not exist, enter DNE.)

Question

f(t) = 6 cos t, −3π/2 ≤ t ≤ 3π/2

Answer 1

excuse me? You don't know where the maxima and minima are on cos(x)?

Don't forget your trig now that you're doing calculus. If nothing else, just find f' and see where it's zero.

Is there some trick to this question beyond what you have posted?

Answer 2

Uhm I did take the derivative but the answers can only be between -3pi/2 and 3pi/2.

Answer 3

Sketch the graph like it said to do.

Answer 4

I figured it out its -6 for absolute minimum and local minimum and 6 for absolute max and local max