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Question
The value of x − yx-y when x = 2 and y = −2 is
Options
18
-18
14
-14
Solution
Given `x- y ^(x-y)`
Here `x = 2, =-2`
By substituting in `x- y ^(x-y)` we get
`x-y^(x-y) = 2-(-2)^(2-(-2))`
`= 2-(-2)^(2 +2))`
`= 2-(-2)^4`
= -14
The value of `x- y ^(x-y)`is – 14
Hence the correct choice is d .
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