+0  
 
0
633
1
avatar

what is square root 16 * square root 4 ? isn't it 4?

 Jan 28, 2017
 #1
avatar+37093 
+5

sqrt(16) * sqrt(4) =

     4      *       2    =   8

 

 

Caveat  sqrt 16   can be  +4   or  -4

              sqrt 4                 +2       -2        So answer COULD be   -8 also

 Jan 29, 2017
edited by ElectricPavlov  Jan 29, 2017

3 Online Users

avatar