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Complex Numbers · 2006 · Shift 0

2 Mathematics questions from this JEE Main paper

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JEE Main
Papers
2006 · Shift 0
Mathematics
Complex Numbers

Complex Numbers · 2006 · Shift 0

2 Mathematics questions from this JEE Main paper

Q67.If $z^{2} + z + 1 = 0$ , where z is complex number, then value of $(z + \frac{1}{z})^{2} + (z^{2} + \frac{1}{z ^{2}})^{2} + (z^{3} + \frac{1}{z ^{3}})^{2} + .......... + (z^{6} + \frac{1}{z ^{6}})^{2}$ …
Mathematics · Complex Numbers · MCQ
Q68.The value of $k = 1 \sum 10 (sin \frac{2 k π}{11} + i cos \frac{2 k π}{11})$ is :
Mathematics · Complex Numbers · MCQ