Question

in what condition the roots of equation z^5 +az + 1 =0 lie within |z| = r​

Answer 1

, x + 2y – 2 = 0, which is the equation of a line. Example 5 If. 2. 2 . 1. 1. − = + z z. , then show that z lies on imaginary axis. Solution Let z = x + iy.