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Byju's Answer
Standard XII
Mathematics
Validation of Statement
If statement ...
Question
If statement
(
p
→
q
)
→
(
q
→
r
)
is false, then truth values of statements
p
,
q
,
r
respectively, can be :
A
F
T
F
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B
T
T
T
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C
F
F
F
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D
F
T
T
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Solution
The correct option is
A
F
T
F
p
q
r
p
→
q
q
→
r
(
p
→
q
)
→
(
q
→
r
)
T
T
T
T
T
T
T
T
F
T
F
F
T
F
T
F
T
T
T
F
F
F
T
T
F
T
T
T
T
T
F
T
F
T
F
F
F
F
T
T
T
T
F
F
F
T
T
T
∴
If p=T or p=F
q=T q=T
r=F r=F
Then the statement
(
p
→
q
)
→
(
q
→
r
)
is false.
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