Consider the following mappings on RXR: * d1(x, y) = e2z-y, d2 = |2x – 2y|, and d3 = VI2x – y|. %3D O Both d1 and d2 are metrics on R. Only d2 is a metric on R. O Both d2 and d3 are metrics on R. None of the choices.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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Consider the following mappings on RXR: *
d1(x, y) = e2z-y, d2 = |2x – 2y|,
and d3 = VI2x – y|.
%3D
O Both d1 and d2 are metrics on R.
Only d2 is a metric on R.
O Both d2 and d3 are metrics on R.
None of the choices.
Transcribed Image Text:Consider the following mappings on RXR: * d1(x, y) = e2z-y, d2 = |2x – 2y|, and d3 = VI2x – y|. %3D O Both d1 and d2 are metrics on R. Only d2 is a metric on R. O Both d2 and d3 are metrics on R. None of the choices.
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