COMPLEX NUMBER

what is the complex number

• combination of real part and unimaginary part

• combination of unreal part and imaginary part

• combination of real part and imaginary part

• combination of unreal part and unimaginary part

What is the conjugate of z=9i-4

• z=-9i+4

• z=-9i-4

• z=9i+4

• z=9i-4

x+3yi=5+9i... what is the value of x & y

• x=3 & y =5

• x=5 & y =-3

• x=5 & y =9

• x=5 & y =3

solve (4+3i)+(5+6i)

• 9+9i

• 7+9i

• 10+9i

• 4+6i

describe 8i

• a=1 & b=8

• a=0 & b=8

• a=8 & b=0

• a=8 & b=8

• 5-12i

• 5+12i

• -5-12i

• -5+12i

which one is complex number

• z=3

• z=5-3i

solve 2(4+8i)

• 8-16i

• 8+16i

• -8+16i

• -8-16i

find the conjugate of 3(5-7i)

• -15+21i

• 15-21i

• 15+21i

• -15-21i