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If f(x) =[x] ,where x is the greatest in...

If f(x) =`[x] `,where x is the greatest integer not greater than ` x,-2 le xle2 ,` then at x= 1

A

f (x) is continuous and differentiable

B

f (x) is not continuous and not differentiable

C

f (x) is not continuous

D

f (x) is differentiable

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The correct Answer is:
A
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