Interventional radiology. Interventional radiology (IR), sometimes known as vascular and interventional radiology (VIR), is a medical sub-specialty which provides minimally invasive image-guided diagnosis and treatment of disease.
Report Abuse. 3*(2)^(1/3) In words, 3 times the third root of 2. Divide 54 by 27 (which is 3 cubed), giving 2 inside the radical and 3 outside.... ... Â· 5 years ago.*(2)^(1/3) In words, 3 times the third root of 2. Divide 54 by 27 (which is 3 cubed), giving 2 inside the radical and 3 outside. ... ... Â· 5 years ago.
A Review of Radicals. Square Roots: Here are a few square roots: The first two popped cleanly (because they had perfect squares inside.) But, the last guy didn't. He's an irrational number. His decimal part goes on forever and ever and never repeats. Just like ! The reason I used   instead of a regular  =  is because I can't really write the exact number down. means  approximately = . When roots like don't pop cleanly, in math, we just leave them as radicals.