A fallacy is a . A. type of medical breakthrough that is commonly accepted after FDA testing B. false or mistaken idea often based on illogical or invalid reasoning and facts C. pill that does not contain any medicine, used to conduct double-blind studies D. medical professional who has been trained to investigate all types of medical fraud

Following are the  advantages of the parametric equations: 1) they can be used to graph curves that are not functions, like the unit circle.2) the parameter can be used to represent the quantity that is  useful to  provide us with better information about the graph.3)  it is useful to convert between rectangular equations and parametric equations.with specific reference to chemistry,  parametric equations are employ for solving hydrogen and hydrogen-like ions, quantum mechanically. herein, cartesian coordinates are converted in spherical polar coordinates. the solution obtained, when plotted on spherical polar graph paper, provides visualization of atomic orbital such as s,p,d and f. 

Don’t know. don’t care.look it up on google