Q 2653378244.     `S_1 :` If `f` is continuous and `g` is discontinuous at `x = a`, then `f(x)* g(x)` is disqontinuous at `x = a`.

`S_2 :` `f(x) = sqrt (2-x) + sqrt (x-2)` is not continuous at `x = 2`.

`S_3 :` `e^(- |x| )` is differentiable at `x = 0`.

`S_4 :` If `f(x)` is differentiable every where, then `| f |^2` is differentiable every where(

A

TTFF

B

TTFT

C

FTFT

D

FFFT

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