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.
RATIONAL EXPONENTS. THIS SYMBOL , as we have seen, symbolizes one number, which is the square root of a. By this symbol we mean the cube root of a. It is that number whose third power is a. For example, because. 8 = 23. In this symbol (cube root of 8), 3 is called the index of the radical.