Question

find local maximum and local minimum value of the function f (x) = sin x - cos x, 0< x< 2π​

Answer 1

Answer:

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Answer 2

Given f(x) = sin x - cos x, 0 < x < 2π f'(x) = cos x + sin x, . .. f'(x) = 0 or cos x + sin x = 0 or tan x = -1