Progress saved Submit and 5 points possible 3/15 answered . Question 10 Convert the point (x, y, z) = ( - 1, - 1, 0) to cylindrical coordinates. Give answers as positive values, either as expressions, or decimals to one decimal place. ( r, 0, z) = Question Help: Video > Next QuestionQuestion 11 Convert the point (x, y, z) = (4, - 3, 5) to spherical coordinates. Give answers as positive values, either as expressions, or decimals to one decimal place. ( p, 0, 0 ) = Question Help: Video > Next Question. Question 6 Let a = ( - 3, 1, 3) and b = (5, 0, - 4). Find the angle between the vector 1) The exact angle is cos 2) The approximation in degree is Question Help: Video > Next