Let U be the set of all triangles in a plane. If A is the set of all triangles with at least on...
4,747 views · Published 11 October 2018 · 2:38 · Indexed 6 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW 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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