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The graph of derivative of a function f(...

The graph of derivative of a function f(x) is given (i.e. y=f'(x)). Analyse the graph in the given domain and answer the following questions , if it is given that f(0)=0
The function f(x) for `-alexlea,` is

A

a) always decreasing

B

b) always increasing

C

c) increasing for (-a,0) and decreasing for (0,a)

D

d) increasing for (0,a) and decreasing for (-a,0)

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