Find f(3) please. I need help. Thank you

Which expresions are equivalent to the one below? check all that apply. 5x

The trigonometric ratios sine and secant are reciprocals of each other

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.