cipama8363 cipama8363
  • 13-07-2020
  • Mathematics
contestada

.............................

 class=

Respuesta :

darshinyu
darshinyu darshinyu
  • 13-07-2020

Answer:

B

Step-by-step explanation:

3/r=1/y-2/x

3/r=x-2y /xy

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