at 4:35 in this video, instead of (y/1-y^ + 1-y/1-y^) should’nt it have been (y/y^ + 1-y/1-y^)… if i am not wrong, 
at 4:35 in this video, instead of (y/1-y^ + 1-y/1-y^) should’nt it have been (y/y^ + 1-y/1-y^)… if i am not wrong,