WBJEE 2015 Math Solved Paper

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Question : 53 of 80

Marks: +1, -0

Let [x] denote the greatest integer less than or equal to x Then the value of α for which the function
f(x) = {

sin[−x2]

[−x2]

x≠0

α

x=0

is continuous at x = 0 is

α = 0
α = sin (-1)
α = sin (1)
α = 1

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