Q. 254.7( 3 Votes )

Find the local ma

Answer :

We have, f(x) = sin x – cos x, 0 < x <2π


f’(x)= 0 cosx+sinx=0


cosx= -sinx


tan x= -1



Now, f’’(x) = cosx – sinx


At


is the point of local maximum.


At


is the point of local minimum.


Local maximum value =


Local minimum value =


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