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The continued product of all values of `(cosalpha+isinalpha)^(3/5)` is 1 (b) `cosalpha+isinalpha` `cos3alpha+isin3alpha` (d) `cos5alpha+isin5alpha`

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RESONANCE DPP-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  16. Let z1,z2,z3 be non-zero complex numbers satisfying the equation z^4=i...

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  17. If z!=0 be a complex number and a rg(z)=pi/4, then R e(z)=I m(z)on l ...

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  18. The centre of a square ABCD is at z0dot If A is z1 , then the centroid...

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  19. The continued product of all values of (cosalpha+isinalpha)^(3/5) is 1...

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  20. The number of 15th roots of unity which are also the 25th root of u...

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