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OpenStudy (anonymous):
let V={1,2,3,4,5} and W={x,y,z}. explain why there are exactly 30 onto functions from V to W. without listing them
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OpenStudy (anonymous):
5x3=15, but since you can either take positive or negative ones, 15x2=30
OpenStudy (anonymous):
why you multiplied by 2?
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