Mathematics · Complex Numbers
यदि x + 1x = -2 cos(θ), तो x2r + 1x2r का मान ज्ञात कीजिए।
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 14 cos(2rθ)
- 2-4 cos(2rθ)
- 32 cos(2rθ)✓
- 4-2 cos(2rθ)
सही उत्तर देखें
2 cos(2rθ)
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