potatomama101 potatomama101
  • 14-06-2021
  • Mathematics
contestada

What is the sign of -xy?

What is the sign of xy class=

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sreedevi102
sreedevi102 sreedevi102
  • 14-06-2021

Answer:

Positive

Step-by-step explanation:

Since x > 0 =  x is positive

Since y < 0 = y is negative

Product of positive and negative number is negative.

Therefore,

       xy = - xy

    - (xy) = -( -xy)

    - (xy) = xy              [since product of negative and negative is positive]  

     

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emven1006 emven1006
  • 09-07-2021
Thee andser is positive!
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