Which of the given set is empty set?
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Answer:
In mathematics, the empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero. Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set, while in other theories, its existence can be deduced.
Correct Option- is B.
{x: x is a real number and x square+1 = 0}
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Step-by-step explanation:
the process by which plants make their food by there own with the help of sunlight water and minerals is known as photosynthesis
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