write the mathematical symbols of complement of A, plus or minus, since, union, similarly. and give answers neatly in a paper attachment.
Answers
Step-by-step explanation:
generally indicates a choice of exactly two possible values, one of which is obtained through addition and the other through subtraction.[1][2]
In experimental sciences, the sign commonly indicates the confidence interval or error in a measurement, often the standard deviation or standard error.[3] The sign may also represent an inclusive range of values that a reading might have.
In medicine, it means "with or without".[4][5]
In engineering, the sign indicates the tolerance, which is the range of values that are considered to be acceptable, safe, or which comply with some standard or with a contract.
In botany, it is used in morphological descriptions to notate "more or less".
In chemistry, the sign is used to indicate a racemic mixture.
In chess, the sign indicates a clear advantage for the white player; the complementary minus-or-plus sign, ∓, indicates the same advantage for the black player.[6]