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For complex numbers z and w prove that a...

For complex numbers z and w prove that `absz^2w-abs(w)^2z=z-w` if and only if z=w or `zbarw=1`

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CENGAGE PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  3. For complex numbers z and w prove that absz^2w-abs(w)^2z=z-w if and on...

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  4. If alpha,beta are the roots of the equation a x^2+b x+c=0, then the va...

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  6. If a in (-1,1), then roots of the quadratic equation (a-1)x^2+a x+sqrt...

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  7. The maximum value of |a r g(1/(1-z))| for |z|=1,z!=1 is given by.

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  12. Let alpha , beta be the roots of x^2-x+p=0 and gamma,delta be the root...

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  13. Let ...

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  14. If f(x)=x^2+2bx=2c^2 and g(x)=-x^2-2cx+b^2 are such that min f(x)gtmax...

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  15. Let z be a complex number such that the imaginary part of z is non zer...

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