Which of the following triple integrals is definite (that is, well-defined and whose result is a real number) ? Note that there may be more than one correct answer. 1 1 2y O sin(zyz)dzdady 0 0 2x 1 1 sin(zya) da dy dz 2z 1 21 ( zyadydr dzO J 0 0 1 cos( zy) 1 O sin(x ) dy da dz 0 1 2y O 11-1 sin(x) dz dy dx 0 0 cos(yr) 1 21 zyadz dy da 0 0 0 cos(y r)1 2y O sin(x ) dz dy dx 0 0 cos(yr) 1 21 zyadz dy da 0 0 cos(yx) 1 2y sin(x ) da dy dz. . O 0 2 z cos(zy)