Question

the real value of a for which x^2+i(a-1)x+5=0 will have a pair of conjugate complex roots is
a.1
b.all values
c.no values exist

Answer 1

put D<0

Answer 2

wait u r considering it wrong
question says pair of conjugate complex roots don't consider it to be irrational

Answer 3

@AllTehMaffs pls..hlp

Answer 4

complex roots are always conjugate.........so dont bother bout it
id D>0 distinct real roots
D=0 only one real root
D<0 imaginary roots

Answer 5

then i m getting sumthing like dis values staisfying a^2-2a+21>0

Answer 6

alltehmaffs do u also consider dat i should take d<0

Answer 7

Yeah, because b^2 will always be negative

\[(i(a+1))^2 = -(a+1)^2

Answer 8

\[(i(a+1))^2 = -(a+1)^2
\]

Answer 9

bah, a-1. Sorry

Answer 10

@AllTehMaffs she got her answer...

Answer 11

yaa

Answer 12

I'm a bit slow I think :P

Answer 13

i got 1 as my answer

Answer 14

no no don't think lyk dat

Answer 15

^_^ thanks