angie178
angie178 angie178
  • 03-05-2017
  • Mathematics
contestada

How can I show that a * b = a+b+ab/100 is commutative?

Respuesta :

LammettHash
LammettHash LammettHash
  • 03-05-2017
* is commutative if a*b = b*a.

[tex]b*a=b+a+\dfrac{ba}{100}=a+b+\dfrac{ab}{100}=a*b[/tex]

so the operation must be commutative because the component operations (addition and multiplication) are commutative.
Answer Link

Otras preguntas

what is air pressure?
Someone please help me : evaluate 3st to the second power + 2s if s=5 and t=3??
At Jones College, there are a total of 100 students. If 30 of the students have cars on campus, and 50 have bicycles, and 20 have both cars and bicycles, then h
how can astronomers use rocks from the moon to estimate the age of the solar system ?
genes are carried from parents to offspring on structures called
solve the formula for the indicated variable  c=yt+y,for t (the solution is t=___)
what is chemical energy?
At Jones College, there are a total of 100 students. If 30 of the students have cars on campus, and 50 have bicycles, and 20 have both cars and bicycles, then h
Which sentence does not contain any errors? A. Fortunately, information on they're collars helped us locate the owners of the dogs.
What Is a Seismometer?