The amplitude of sin 5 +i (1- 5 ) is

Mathematics · JEE Main · NTA ExamsComplex Numbers and Quadratic Equations

The amplitude of sin \(\frac{\pi}{5}+i\left(1-\cos \frac{\pi}{5}\right)\) is
  1. \(\frac{2 \pi}{5}\)
  2. \(\frac{\pi}{15}\)
  3. \(\frac{\pi}{10}\)
  4. \(\frac{\pi}{5}\)

Answer

(C) 10

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