find the absolute and local maximum and minimum values of f.
-pi/2 ≤ t ≤ 3pi/2
i have no clue how to solve this because cos(-π/2) and cos(3π/2) equal 0 but the answer isn't zero.
find the absolute and local maximum and minimum values of f.
-pi/2 ≤ t ≤ 3pi/2
i have no clue how to solve this because cos(-π/2) and cos(3π/2) equal 0 but the answer isn't zero.