+0  
 
0
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Please answer

 

 Jul 30, 2020
 #1
avatar+26620 
+1

Not A       if x = 1   you wil be dividing by 0     not allowed

Not B        imaginary numbers will happen

C

Not D        imaginary numbers again

 Jul 30, 2020
 #2
avatar+1322 
0

It is D!!!

 

If x = -1

 

sqrt( x +3 ) / sqrt( 1 - x ) = sqrt( -1 + 3 ) / sqrt[ 1 - (-1)] = 1  laugh

Dragan  Jul 31, 2020

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