Use matlab!!! Answer should be as a coding

Do not answer by hand

1. Given the vector function r(t)- esin t, eos t): a) Find a vector equation for the line tangent to the curve at the point where b) Find the points on the graph where the tangent line is: i. Horizontal ii. Vertical c) Sketch the graph of the vector function on t e [0, 2] and all tangent lines found in parts a) and b)