Let `A = Q xx Q`, where Q is the set of all rational numbers, and * be abinary operation def
36 views · Published 13 October 2018 · 4:40 · Indexed 4 October 2026
Channel: Doubtnut · 2018 · Education
To ask Unlimited Maths doubts download Doubtnut from - https://goo.gl/9WZjCW Let `A = Q xx Q`, where Q is the set of all rational numbers, and * be abinary operation defined on A by `(a, b) * (c, d) = (ac, b + ad)`, for all `(a, b) (c, d) in A`.Find the identity element in A.
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