August 2022 1 12 Report

Упростите выражение:

б)( 1/x+z - 1/x-z) : (1/x+z + 1/x-z)

в)(a/b + b/a + 2) : (a/b - b/a)

г)(1/y - y) . (1/y+1 - 1/y-1)

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