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If xa n dy are complex numbers, then the...

If `xa n dy` are complex numbers, then the system of equations `(1+i)x+(1-i)y=1,2i x+2y=1+i` has Unique solution No solution Infinite number of solutions None of these

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CENGAGE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
  1. Number of solutions of the equation z^3+[3(barz)^2]/|z|=0 where z is a...

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  2. If the roots of the quadratic equation x^2+p x+q=0 are tan30^0a n dtan...

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  3. If xa n dy are complex numbers, then the system of equations (1+i)x+(1...

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  4. If a ,b ,a n dc are in A.P. and one root of the equation a x^2+b c+c=0...

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  5. If z=x+iy (x, y in R, x !=-1/2), the number of values of z satisfying ...

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  6. If K + |K + z^(2)| = \ z|^(2) ( K in R^(-)) , then possible argument...

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  7. If alpha is the root (having the least absolute value) of the equation...

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  8. If alpha,beta are roots of x^2-3x+a=0 , a in R and alpha &lt;1< beta...

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  9. If z=x+iy and x^(2)+y^(2)=16, then the range of abs(abs(x)-abs(y)) is

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  10. If a lt b lt c lt d, then for any real non-zero lambda, the quadratic...

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  11. If k>0, |z|=|w|=k, and alpha=(z-bar w)/(k^2+zbar(w)), then Re(alpha) ...

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  12. The quadratic x^2+a x+b+1=0 has roots which are positive integers, th...

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  13. The sum of values of x satisfying the equation (31+8sqrt(15))^(x^2-3)+...

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  14. Let a complex number alpha,alpha!=1, be a rootof hte euation z^(p+q)-z...

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  15. If alpha,beta are real and distinct roots of a x^2+b x-c=0a n dp ,q ar...

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  16. Let a!=0 and p(x) be a polynomial of degree greater than 2. If p(x) le...

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  17. Prove that there exists no complex number z such that |z| &lt; 1/3 an...

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  18. A quadratic equation with integral coefficients has two different prim...

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  19. Find the centre and radius of the circle formed by all the points repr...

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  20. If a ,b ,c are three distinct positive real numbers, the number of rea...

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