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Question

If f:[4,4]R is defined by f(x)=x2 then the range of f=

A
[4,4]
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B
[0,4]
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C
[0,16]
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D
(,)
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Solution

The correct option is C [0,16]
f(x)=x2 is an even function so it is symmetric about y-axis.
f(0)=0
f(4)=f(4)=16
So range of f(x) is [0,16]

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