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If fx = {{:(x , x lt=),(2x - 1, 1ltx):}...

If fx = `{{:(x , x lt=),(2x - 1, 1ltx):} x lt=1`then :

A

f is discontinous at x = 1

B

f is differentiable at x = 1

C

c is continous but not different at x = 1

D

none of these

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