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If f(x)={:{(-2", for " x le -1),(2x", fo...

If `f(x)={:{(-2", for " x le -1),(2x", for " -1 lt x le 1),(2", for " x gt 1):}`, then

A

f is discontinuous on its domain

B

f is continuous on its domain

C

f is continuous on its domain except at `x=-1`

D

f is continuous on its domain except at `x=1`

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The correct Answer is:
B
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