For the following exercises, decide if the function continuous at the given point. If it is discontinuous, what type discontinuity is it? 139. f(x) 2x7 52+3 at x = 1 x-1 140. h (0) = sin 0-cos 0 at 0 = 17 tan 0 6u2 tu-2 141 . g (u ) = 2u-1 if u * , at u = N H if u = 142. f (y) : sin (Ty) tan (Ty) at y = 1 ac - e" if x > atx = 0