Maths-
General
Easy
Question
Hint:
For the given function we have to find the value of x when f(x) will be greater than or equals to 0. The given function has three cases we will put the value of x from each case and then determine when would f(x) will be 0 or positive.
The correct answer is:
For, 
, we have to find x when f(x) will be greater than or equals to 0.
As per the given function,
f(x) will be negative when
f(x) will be positive or 0 when 
(as f(x)= 
)
f(x) will be positive when 
(as f(x)= 
)
So, for 
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