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Question

The range of the function f(x)=(x2+2x+2) is

A
(1,)
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B
(2,)
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C
(0,)
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D
[1,)
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E
(,)
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Solution

The correct option is C [1,)
Given,

f(x)=x2+2x+2

=x2+2x+1+1

=(x+1)2+11

So, the range of f(x) is [1,).

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