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Verify that, if either R1 or R2 is irreflexive then so is R1 * R2
NanaDKL
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Dec 13, 2021
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Verify that, if either R1 or R2 is irreflexive then so is R1 * R2
discrete-mathematics
NanaDKL
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Dec 13, 2021
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NanaDKL
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raja11sep
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Dec 13, 2021
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What is this ‘*’ operation?
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Michelle
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Dec 15, 2021
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multiplication “X”
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raja11sep
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Dec 15, 2021
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You mean Cross product?
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I want to start preparation of gate 2024 in this december. one mistake i did in JEE was i overwhelmed with content and misguided or self-misguided by youtube videoes and tutorials. i want some structured way of learning now and not want to repeat that mistake again. so, should i join Gate Wallah. if not then tell me just 2 or 3 youtube channel with i can stick with it. if that also not good idea the tell me any paid batch i can purchase under 10,000 INR
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consider relation R1(A,B) and R2(C,D) ,where R1 contain 'm' tuples and R2 contain 'n' tuples and R1,R2 contain no common attribute and attribute B have NULL values then what is the number of tuples in cartesian product of R1 and R2?
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