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Question

The value of limx0([100xsin x]+[99sin xx]),where [.] denotes the greatest integer function, is


A

197

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B

198

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C

199

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D

Does not exist

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Solution

The correct option is B

198


For x > 0, sin x < x

sin xx<1

99sin xx<99

[99sin xx] = 98

and xsin x>1

100xsin x>100

[100xsin x] = 100

limx0([100xsin x]+[99sin xx]) = 100+98 = 198


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