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chelpWJedCreoM
chelpWJedCreoM chelpWJedCreoM
  • 23-05-2016
  • Mathematics
Answered

Which expression is equivalent to -1?

A-

x + y

x - y

B-

x - y

-x + y

C-

x - y

-x - y

D-

x + y

-x + y

Verified Answer :

caylus
caylus caylus
  • 24-05-2016

Hello,
Answer B

If x≠y then
\(\dfrac{x-y}{-x+y}=\dfrac{x-y}{-(x-y)}=-1\)


Answer Link

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