Question 1 1 pts One trick that we learn from the lesson that helps us to remember the derivatives of the trig functions: tan(x) and sec(I) is. . (Hint: The answer has 3 letters.) Question 2 1 pts The derivatives of cos(x), cot(z), and csc(z) , all have a negative sign " - " in front. True O False Question 3 1 pts sec(z) f () = 1+tan(x) ' For what values of a does the graph of f have a horizontal tangent? O When x = # + 2kx, where k is an integer. O When x = # + ka, where k is an integer. O When z = * + kn, where k is an integer. O When z = 3 + ku, where k is an integer. Question 4 1 pts The equation sec(x) = 0 has no solution. In other words sec(z) is never 0. O True O False Question 5 1 pts The position function of an object at the end of a vertical spring is. S = f (t) = 4cos(t). What is the speed function of this object? (Hint: Here we are asking about the speed function instead of the velocity function.) O -4 cost O 4 | sin t) O 4 sint O -4 sint Question 6 1 pts What is the 10th derivative of sin() ? O cos(I) O - cos(2) O tan(I) O - sin(z) O sin(z) Question 7 1 pts What is the 13th derivative of cos(2) ? O - cos() No answer text provided. O cos (I) O - sin(x) O sin(z) Question 8 1 pts The limz-+0- tan(67) is equal to sin(2:) . (Hint: The answer is an integer.) Question 9 1 pts The lim,-+0 sin () is equal to -. (Hint: The answer is an integer.)