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Standard XI
Mathematics
NCERT
Question
Show that if
A
⊂
B
, then
C
−
B
⊂
C
−
A
Open in App
Solution
Verified by Toppr
Let
A
⊂
B
To show:
C
−
B
⊂
C
−
A
Let
x
∈
C
−
B
⇒
x
∈
C
and
x
/
∈
B
⇒
x
∈
C
and
x
/
∈
A
(
A
⊂
B
)
⇒
x
∈
C
−
A
∴
C
−
B
⊂
C
−
A
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