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Question

limx0 2-x-2+xx

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Solution

limx02-x-2+xx

It is of the form 00.
Rationalising the numerator:

limx02-x-2+x2-x+2+xx2-x+2+x

= limx02-x-2+xx2-x+2+x

= limx0-2xx2-x+2+x

= -222

= -12

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