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Question

For the given graph of y=2cot(x+π/4); yR. Select the correct statements.


A
Domain: R(4n1)π/2; nZ
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B
For x[π,3π],y=0 at x=3π/4,π/4,5π/4,9π/4
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C
For x[π,3π],y=0 at x=3π/2,π/2,5π/4,9π/4
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D
Domain: R(4n1)π/4; nZ
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Solution

The correct option is D Domain: R(4n1)π/4; nZ
Given the graph of cotx


Here, cotx is not defined for x=π/4,3π/4,7π/4...
Or Domain(D): R(4n1)π/4
Also, For x[π,3π],y=0 at points:
x=3π/4,π/4,5π/4,9π/4


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