Try to sketch the graph of y = 2 cos x and find the 5 key points. *consider the given figure below for the 5 key points of y = 2 cos x.

Q: evaluate exactly cos-1(-3/2)

A: -3/2 lies outside the domain of the function. Hence we will have no solution

Q: Describe the relationship between the graphs of y = A cos(Bx - C) and y = A cos(Bx - C) + D.

A:

Q: sece-cos e The simplified form of is sece+cose

A: We will simplify as following.

Q: now to get cos-1 value?

A:

Q: What are the differences between cosx and cos ¹x

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Q: Match each graph with its equation Ic r= sin(2 0) r= cos(6 0) r= cos(2 0) r= cos(3 0) r= cos(7 0)

A: The first graph represent the image of cos(6 theta) The second graph represent the image of cos (3…

Q: Find cos o. (8, 6) ? COS O ニ Give your answer in lowest terms.

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Q: Evaluate tan (cos-¹(-3)) 5

A:

Q: Estimate the value of the limit lim, 40 COS x if it exists, by filling out this table and then…

A: We have to find the limit of the function and want to find some values to conclude graphically.

Q: Evaluate 3 L, cos¹ (2+1) dr. -1

A: l have given the answer in the next step. Hope you understand that

Q: What is the range of 4 cos x + 1?

A:

Q: Graph the three functions on a common screen. How are the graphs related? y = cos 37x, y = -cos 37x,…

A: Given equation: y=cos3πx,y=-cos3πxy=cos3πx ·cos21πx Graph those functions and state how are they…

Q: Which equation has a graph that goes through point (0,6)? 6 sin (180/pi)t -6 sin (360/pi)t 6 cos…

A: Note that the value of cos⁡(0)=1. This fact will be used in solving the problem.