Which is the best estimate of
-18
-9
9
O 18

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Find the solution of each of the following.

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle