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Let "T" be the set of all triangles i...

Let `"T"` be the set of all triangles in a plane with `"R"` as relation in `"T"` given by `"R"={("T"_1,("\ T")_2):("\ T")_1~="T"_2}` . Show that `"R"` is an equivalence relation.

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Reflexive
`(T_1,T_1)inR`
`T_1 cong T_1`
R is a reflexive relation.
Symmetric
`(T_1,T_2) inR`
`(T_2-T_1)inR`
`T_1 cong T_2`
...
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XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
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