Typically upper case letters represent vertices and lower case letters represent the measures of sides on a picture of a polygon. So are you saying that the product of the measures of sides b and c is 1? Or are you just being sloppy with the designation of your vertices and you mean the segment BC measures 1? If the latter, you need to specify which vertex is the right angle and at least one other vertex. Typically, C is the right angle, but you are so all over the map with this one, I'm not making any assumptions.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it