(2+i)x^(2)+(i-5)x-2(i-1)=0

Solve the following equations : (i) 2x^(2)-(3+7i)x-3+9i=0 (ii) (2+i)x^(2)-(5-i)x+2(1-i)=0

Solve the following quadratic equation: (2+i)x^(2)-(5-i)x+2(1-i)=0

Solve the following quadratic equations: (2+i) x^2 -(5-i)x+2(1-i)=0

Solve the following quadratic equation: (2+i)x^2-(5-i)x+2(1-i)=0

Let A={a in R} the equation (1+2i)x^(3)-2(3+i)x^(2)+(5-4i)x+a^(2)=0 has at least one real root.Then the value of (sum a^(2))/(2) is

If sum_(i=1)^(2n)cos^(-1)x_(i)=0 then find the value of sum_(i=1)^(2n)x_(i)

If sum_(i=1)^(2n)cos^(-1)x_(i)=0 , then sum_(i=1)^(2n)x_(i) is :

The root of the equation 2(1+i)x^(2)-4(2-i)x-5-3i=0, where i=sqrt(-1), which has greater modulus is