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AssignmentMultiple Select

Graphing Cosecant and Secant Functions

Question 1 • IC Pre-Cal - Deering

Which of the following are true statements? Select all that apply.

Answer
A
The cosecant graph has a local minimum when the sine graph has a local minimum.
B
The cosecant graph has a local minimum when the sine graph has a local maximum.
C
The cosecant graph has a local maximum when the sine graph has a local maximum.
D
The cosecant graph has a local maximum when the sine graph has a local minimum.

Explanation

Since cosecant is the reciprocal of sine, a sine maximum of 1 gives a cosecant value of 1, which is a local minimum of the cosecant graph. A sine minimum of −1 gives a cosecant value of −1, which is a local maximum of the cosecant graph. Therefore, the true statements are that cosecant has a local minimum at a sine maximum and a local maximum at a sine minimum.

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