If f (x)= tan ^(-1) (sgn (x ^(2) -lamda ...

If `f (x)= tan ^(-1) (sgn (x ^(2) -lamda x+1))` has exactly one point of discontinuity, then the value of `lamda ` can be:

A

1

B

`-1`

C

2

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:

C, D

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