do any of you guys/gals know how to do this? -------- Write the following trig expression as an algebraic expression: sin(arcsin x + arccos x) -------- The answer is 1 in case you do it. reply as soon as possible. thanks ____________________________________________________ Garvin Cung <cung@worldnet.att.net> http://www.geocities.com/researchtriangle/lab/2240