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A value of b for which the equations x^2...

A value of b for which the equations `x^2+bx-1`=0, x^2+x+b =0` have one root in common is

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CENGAGE PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
  1. If the roots of the equation x^2-2ax+a^2 + a-3=0 are less than 3 then

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  2. If z(1+a)=b+i c and a^2+b^2+c^2=1, then [(1+i z)//(1-i z)= A. (a+i b...

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  3. A value of b for which the equations x^2+bx-1=0, x^2+x+b =0 have one r...

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  4. If z1,z2,z3 are three complex numbers and A= abs[[argz1,argz2,argz3],...

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  5. Let p and q be real numbers such that p!=0,p^3!=q ,and p^3!=-qdot If a...

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  6. If cosalpha+2cosbeta+3cosgamma=sinalpha+2sinbeta+3singamma=0, then the...

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  7. Let alpha,beta be the roots of the equation x^(2)-px+r=0 and alpha//2,...

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  8. If center of a regular hexagon is at the origin and one of the vertice...

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  9. Let a,b,c be the sides fo a triangle where anebnec and lamdainR,if roo...

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  10. about to only mathematics

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  11. Let S be the set of all non-zero real numbers alpha such that the quad...

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  12. A complex number z is rotated in anticlockwise direction by an angle ...

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  13. For real x, the function ((x-a)(x-b))/(x-c) will assume all real value...

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  14. If z1, z2 are two complex numbers (z1!=z2) satisfying |z1^2-z2^2|=| z...

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  15. The quadratic equation p(x)=0 with real coefficients has purely imagi...

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  16. If from a point P representing the complex number z1 on the curve |z...

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  17. Let alpha, beta be the roots of the equation x^(2)-6x-2=0 with alpha g...

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  18. If |z-3|=min{|z-1|,|z-5|}, then Re(z) equals to

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  19. For the following question, choose the correct answer from the codes ...

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  20. Find the value of 1^3

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