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the difference between two terms, both of which are perfect squares, such that the factors are the sum and difference of their roots: x2 – y2 = (x + y)(x – y).
in set theory, a union between two or more data sets refers to all the elements in the data sets...
a graph that is formed when plotted points are joined by straight lines (so the resulting graph...
a number which combined with its inverse results in the identity 1, e.g. 4 × ¼ = 1.
a tabular representation of the number of times a certain score or range of scores was obtained...