Let -LSB- math -RSB- x = R -LSB- / math -RSB- and -LSB- math -RSB- p -LSB- / math -RSB- be the discrete metric on -LSB- math -RSB- X -LSB- / math -RSB- defined by -LSB- math -RSB- p -LRB- x , y -RRB- = 8 -LSB- / math -RSB- if -LSB- math -RSB- x -LSB- / math -RSB- is not equal to -LSB- math -RSB- y -LSB- / math -RSB- and -LSB- math -RSB- 0 -LSB- / math -RSB- , if -LSB- math -RSB- x = y -LSB- / math -RSB- . What is -LSB- math -RSB- \ text -LCB- B -RCB- _ 0 \ text -LCB- -LRB- -1 -RRB- -RCB- -LSB- / math -RSB- ?
Do economics majors need math ?