i need help with these questions

c) Vector a has magnitude 4. vector b has magnitude 8. the angle between a and b is 150 and n is the unit vector at right angles to both a and b What is a x b ? 2) A= i) Find a vector that is parallel to vector A ii) Find a vector that is a perpendicular to vector A iii) Find the real numbers A so that and b are perpendicular "= and b =3) A force F of 2N is represented in the diagram at the right. a. Express F in component form. b. what I F I? 2 150 Y X 4 if v = (3 cos 40, 3 sin 40'), write 2v and -V in component form