If the six roots of `x^6 = -64` are written in the form `a + ib`, where a and b are real, then the product ofthose roots for which `a lt 0` is

If the six roots of x^6 = -64 are written in the form a + ib , where a and b are real, then the product ofthose roots for which a > 0 is

If the six roots of x^6 = -64 are written in the form a + ib , where a and b are real, then the product of those roots for which a > 0 is

If the six roots of x^6 = -64 are written in the form a + ib , where a and b are real, then the product of those roots for which a lt 0 is

Find the square root of 7 + 24i in the form of a + ib, where a, b in R .

If 2 - i is a root of the equation ax^2+ 12x + b=0 (where a and b are real), then the value of ab is equal to :

If 2 + i and sqrt5-2i are the roots of the equation (x^2+ax+b)(x^2+cx+d)=0 , where a,b,c,d are real constants, then product of all roots of the equation is

If 2 + i and sqrt(5)-2i are the roots of the equation (x^(2)+ax+b)(x^(2)+cx+d)=0 where a , b , c , d are real constants then product of all roots of the equation is -

If the roots of the equation x^4 - 10x^3 +50 x^2 - 130 x + 169 = 0 are of the form a +- ib and b +- ia then (a,b)=