Set of all non- zero real numbers

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What is R* in math?

Asked by Meenakshisundarams 03/11/2021 Last Modified 03/11/2021

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A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to travel the same distance if its speed were 5 km/hr more. Find the original speed of the train.

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The sample size is 46 (i) The prime numbers less than 10 are 5 and 7. so the probability is 2/46 or 1/23. (ii) The perfect squares are 9,16,25, 36 and 49-five in all so the probability is 5/46

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What is the difference between algebra, linear algebra, and abstract algebra?

Numbers, equations, x-y etc.==Algebramatrix, specifically linear equations == Linear algebra domain-specific algebraic stuffs that comes from some mathematical equations of some sort ==abstract algebra

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