Please explain it in detail. Thank you so much.

12. [-/1 Points] DETAILS LARCALC11 11.1.072. Consider the following. Function Point f(x) = tan X (g, 1) (a) Find a unit vector parallel to the graph of fat the given point. C (b) Find a unit vector perpendicular to the graph of fat the given point. C Sketch the graph of fand sketch the vectors at the given point. 13. [-/1 Points] LARCALC11 11.1.073. ASK YOUR TEACHER Find the component form of v given the magnitudes of u and u + v and the angles that u and u + v make with the positive x-axis. l|u|| = 1, 9 = 45 l|u + vl| = J18 = 90 Need Help? 14. [-11 Points] LARCALC11 11.1.077. ASK YOUR TEACHER PRACTICE ANOTHER Three forces with magnitudes of 72 pounds, 103 pounds, and 141 pounds act on an object at angles of 30, 45, and 120 respectively, with the positive x-exis, Find the direction and magnitude of the resultant force. (Round your answers to one decimal place.) meeneuee : w 7. [0/1 Points] DETAILS PREVIOUS ANSWERS LARCALC11 11.1.038.M|. Find the unit vector in the direction of v. v = -6.9i + 2.9j u = X 9. [-/1 Points] DETAILS LARCALC11 11.1.046. Find the vector v with the given magnitude and the same direction as u. Magnitude Direction 1/ v |1 = 6 u = (1, 1) V Need Help? Read It 10. [-/1 Points] DETAILS LARCALC11 11.1.049. Find the component form of v given its magnitude and the angle it makes with the positive x-axis. 1/v |1 = 2, 0 = 00 V Need Help? Read It Watch It 11. [-/1 Points] DETAILS LARCALC11 11.1.055. Find the component form of u + v given the lengths of u and v and the angles that u and v make with the positive x-axis. | | u|1 = 3, By = 5 | |v |1 = 1, ev = 3 u+ V =