Question

what is SI unit? define it
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Answer 1

Answer:

it stands for international system of unit

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Explanation:

is a scientific method of expressing the magnitudes or quantities of important natural phenomena. There are seven base units in the system, from which other units are derived. This system was formerly called the meter-kilogram-second (MKS) system.

Answer 2

SI unit:- It stands for standard units that includes the 7 fundamental units and the two supplementary units(radian, sterdian).