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Byju's Answer
Standard IX
Mathematics
Universal Set
Let U be the ...
Question
Let U be the set of all triangles in a plane . If A is the set of all triangles with at least one angle different from 60° , what is A'
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Q.
Let
U
be the set of all triangles in a plane. If
A
is the set of all triangles with at least one angle different from
60
∘
,
what is
A
′
?
Q.
Let U be the set of all triangles in a plane. If A is the set of all triangles with at least one angle different from 60°, what is ?
Q.
A = set of all triangles
B = set of all right triangles
A - B=?
Q.
Let
R
be the relation “is congruent to” on set of all triangles in a plane. Then
R
is
[1 mark]
Q.
Let
T
be the set of all triangles in the Euclidean plane, and let a relation
R
on
T
be defined as
a
R
b
, if
a
is congruent to
b
for all
a
,
b
∈
T
. Then,
R
is
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