Which sum or difference identity would you use to verify that sin (90° + q) = cos q?

Of four points are collinear, they are also coplanar

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

C. using a standard deck of 52 cards, the probability of selecting a 4 of diamonds or a 4 of hearts is an example of a mutually exclusive event. true of false