For what values of c is the average rate of change for f(x) = cos x - sin x equal to the instantaneous rate of change on the interval 0 ≤ x ≤ 2pi A. x= 5pi/4
B. x= 7pi/4
C. x= pi/4
D. none of these

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?

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