
To determine the period of the given function and graph it.

Answer to Problem 7CYU
Period =2π
Explanation of Solution
Given:
y=2cscθ
Concept used:
Amplitude is the distance between the center line of the function and the top or bottom of the function.
Period is the distance between two peaks of the graph.
The generalized equation for a cosine function is:
y=Acsc(Bx)
Amplitude =A
Period =2πB
Calculation:
For y=2cscθ ,
Comparing with the general cosine equation y=Acsc(Bx) ,
B=1
Period =2πB
=2π1=2π
The period of the given function is 2π .
Graph:
The graph of y=2cscθ :
Conclusion:
Therefore, the period of the given function is 2π .
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