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Byju's Answer
Standard XII
Mathematics
Contra-Positive
The contrapos...
Question
The contrapositive of "if in a triangle
A
B
C
,
A
B
>
A
C
, then
∠
C
>
∠
B
", is
A
lf in a triangle
A
B
C
,
∠
C
>
∠
B
, then
A
B
>
A
C
.
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B
lf in a triangle
A
B
C
,
A
B
≯
A
C
, then
∠
C
≯
∠
B
.
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C
lf in a triangle
A
B
C
,
∠
C
≯
∠
B
, then
A
B
>
A
C
.
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D
lf in a triangle
A
B
C
,
∠
C
≯
∠
B
, then
A
B
≯
A
C
.
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Solution
The correct option is
D
lf in a triangle
A
B
C
,
∠
C
≯
∠
B
, then
A
B
≯
A
C
.
Take
p
:
A
B
>
A
C
and
q
:
∠
C
>
∠
B
So the given statement is symbolically represented as
p
→
q
Now by definition, Contrapositive of a conditional statement
p
→
q
is
∼
q
→
∼
p
∼
p
:
A
B
≯
A
C
∼
q
:
∠
C
≯
∠
B
Thus
∼
q
→
∼
p
is given by
"If in a
△
A
B
C
,
∠
C
≯
∠
B
then
A
B
≯
A
C
."
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