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


is the point of local maximum.


is the point of local minimum.

Local maximum value =

Local minimum value =

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