Thursday, September 15, 2011

Do the units under the square root sign change when you remove the root sign?

For example, Sqr root (36 mm^2)...does it equal 6 mm^2? or 6mm?Do the units under the square root sign change when you remove the root sign?To explain let the area of a square = 36 mm^2

Then its side lenth = Sqr root (36 mm^2)

So = 6 mm onle without squareDo the units under the square root sign change when you remove the root sign?Yes, they do change, so it is 6mm



Also, 6 mm * 6mm = 36 mm^2Do the units under the square root sign change when you remove the root sign?Yes, units go through the same changes as the number, so remove the square from the unit when you solve for the square root.



Actually, it has two roots:



-6 mm

+6 mm
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