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.
Last edited by break; Nov 18th 2009 at 02:25 PM.
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Originally Posted by break 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. absolute extrema don't always occur at endpoints. based on your prior knowledge of trig alone (w/o calculus), you should be able to sketch the relatively simple graph of . based on that sketch, the absolute max for is , and the absolute min is
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