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Is it possible for two different inputs to give you the same output? Please give an explanation.😄

 Aug 4, 2017
edited by xxchrisyxx  Aug 4, 2017
edited by xxchrisyxx  Aug 4, 2017
 #1
avatar+99388 
+2

yes

 

\(y=x^2\)

 

input x=2  output is 4

input x=-2 output is 4

 

Two different inputs give the same output.

 Aug 6, 2017
 #2
avatar+27578 
+2

Another example:  y(x) = sin(x)

 

y(pi/2) = 1

y(5pi/2) = 1

... etc.

 

Even more extreme: y(x) = constant

Any input gives the same output!

 Aug 6, 2017

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