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.
Answer 1 : The only answer is Ï^-1i The square root of - 1 is i so i times the square root of pi is equal to the square root of negative pi Answer 2 : More concretely , the squar â¦e root of negative pi is approximately 1.772453850905i , wherein the 1.772453850905 represents an approximation of pi , and  i  , which should be a lower case cursive  ...