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If z is any complex number satisfying |z...

If z is any complex number satisfying `|z-3-2i|lt=2` then the maximum value of `|2z-6+5i|` is

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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
  1. Let omega= e^((ipi)/3) and a, b, c, x, y, z be non-zero complex numb...

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  2. Find the values of a for which all the roots of the euation x^4-4x^3-8...

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  3. If z is any complex number satisfying |z-3-2i|lt=2 then the maximum va...

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  4. Let |(( bar z 1)-2( bar z 2))//(2-z1( bar z 2))|=1 and |z2|!=1,where z...

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  5. If x=2+2^(2//3)+2^(1//3) , then the value of x^3-6x^2+6x is (a)3 b...

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  6. Let 1,w,w^2 be the cube root of unity. The least possible degree of a ...

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  7. If z1a n dz2 are complex numbers and u=sqrt(z1z2) , then prove that |z...

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  8. The least value of the expression x^2+4y^2+3z^2-2x-12 y-6z+14 is a...

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  9. If omega is an imaginary cube root of unity, then (1+omega-omega^2)^7 ...

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  10. If |z|=1 and let omega=((1-z)^2)/(1-z^2) , then prove that the locus o...

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  11. If x=2+2^(2//3)+2^(1//3) , then the value of x^3-6x^2+6x is

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  12. Let z=x+i ydot Then find the locus of P(z) such that (1+ bar z )/z ...

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  13. (costheta + isintheta)^4/(sintheta + icostheta)^5 is equal to.

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  14. Find the values of k for which |(x^2+k x+1)/(x^2+x+1)|<2,AAx in R

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  15. Identify locus z if R e(z+1)=|z-1|

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  16. If z is a complex number satisfying z^4+z^3+2z^2+z+1=0 then the set of...

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  17. Solve the equation sqrt(a(2^x-2)+1)=1-2^x ,x in Rdot

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  18. If |z1|=1,|z2|=2,|z3|=3,a n d|9z1z2+4z1z3+z2z3|=12 , then find the va...

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  19. Let Z1 = (8 + i)sin theta + (7 + 4i)cos theta and Z2 = (1 + 8i)sin th...

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  20. For a<0, determine all real roots of the equation x^2-2a|x-a|-3a^2=0.

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