TS EAMCET · Maths · Complex Number
If \(n \in N\) and the period of \(\frac{\cos n x}{\sin \left(\frac{x}{n}\right)}\) is \(4 \pi\), then \(n\) is equal to
- A \(4\)
- B \(3\)
- C \(2\)
- D \(1\)
Answer & Solution
Correct Answer
(C) \(2\)
Step-by-step Solution
Detailed explanation
Given that period of \(\frac{\cos n x}{\sin \left(\frac{x}{n}\right)}\) is \(4 \pi\). We know Period of \(\quad \cos n x=\frac{2 \pi}{n}\) and period of \(\sin \left(\frac{x}{n}\right)=2 n \pi\)…
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