Consider the following mappings on RXR: d1(x,y) = e*-Y, d2(x,y) = |2x –yl and d3(x,y) V=yl O Both d1 and d2 are metrics on R. O Only d2 is a metric on R. Both d2 and d3 are metrics on R.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Consider the following mappings on RXR: "
di(x,y) = e* , d2(x.y) = |2x- y and d3(x,)= |
O Both d1 and d2 are metrics on R.
OOnly d2 is a metric on R.
Both d2 and d3 are metrics on R.
O None of the choices.
Transcribed Image Text:Consider the following mappings on RXR: " di(x,y) = e* , d2(x.y) = |2x- y and d3(x,)= | O Both d1 and d2 are metrics on R. OOnly d2 is a metric on R. Both d2 and d3 are metrics on R. O None of the choices.
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