The number of roots of the equation `z^(6)=-64` whose real parts are non-negative,

The number of real roots of the equation z^(3)+iz-1=0 is

The number of real roots of the equation z^(3)+iz-1=0 is

The number of real roots of the equation |x^(2)|-5|x|+6=0 is

Number of roots of the equation z^10-z^5 -992=0 with negative real part is

Number of roots of the equation z^(10)-z^(5)-992=0 with negative real part is

Number of roots of the equation z^10-z^5 -992=0 with negative real part is

Number of roots of the equation z^10-z^5 -992=0 with negative real part is

Let a > 0, b > 0 & c > 0·Then both the roots of the equation ax2 + bx + c (A) are real & negative (C) are rational numbers 0 0.4 (B) have negative real parts (D) none