23 Find all points of discontinuity of f, where
sin
, if
0
( )
1,
if
0
x
x
f x
xx
x

<
= 
 +
≥

24 Determine if f defined by
2
sin1
, if
0
( )
0,
if
0
x
x
f x
x
x

≠
= 

=

is a continuous function Rationalised 2023-24
 MATHEMATICS
118
25