Analytically show that the equations below represent trigonometric identity statements. (1 - cos a)(csc a + cot a) = cos a tan a

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?