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Question

The value of f(x)=[sin2x2]+[cos2x2], where [.] denotes greatest integer function, is

A
12
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B
1
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C
2
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D
0
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Solution

The correct option is D 0
As 0sin2x1,0sin2x212
[sin2x2]=0
Similarly, [cos2x2]=0
f(x)=[sin2x2]+[cos2x2]=0

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