p294 q16 c
.......(*), where k is real, has no real roots.
find , in terms of k, the squares of the roots of (*), expressing the answers in the form x+iy where x and real are real.
as k varies, find the equation of the locus of the pts in the argand plane representing the squares of the roots of (*)
square of the roots
don't know how to find the locus. thanks.