Mathematics · Complex Analysis
सम्मिश्र चरों (complex variables) के लिए निम्नलिखित में से कौन सी सर्वसमिका/गुणधर्म असत्य है?
- 1cos z = eiz + e-iz2, ∀ z ∈ ℂ
- 2sin z = eiz - e-iz2i, ∀ z ∈ ℂ
- 3सभी z ∈ ℂ के लिए sin2z + cos2z = 1
- 4सभी z ∈ ℂ के लिए |sin z| ≤ 1✓
सही उत्तर देखें
सभी z ∈ ℂ के लिए |sin z| ≤ 1
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