Question

write the conjugates of the following complex numbers 5i​

Answer 1

Answer:

-5i

Step-by-step explanation:

• x + iy is a complex number.x is called its real part and y is called its imaginary part.

• The conjugate of x + iy is given by x - iy. For example :- The conjugate of 6 + 8i is 6 - 8i.

• The conjugate of z is given by $\bar{z}$

• Therefore,$\overline{3\:+\:4i}\:=\:3\:-\:4i$

• The conjugate of a point in a complex plane is its image with respect to x-axis.

Additional details

• $z \bar{z}\:=\:{|z|}^2$

• If $z\:+\: \bar{z} \: = \:0$ , z is purely imaginary since its real part is zero.

• If $z\:-\: \bar{z} \: = \:0$ , z is purely real since its imaginary part is zero.

Answer 2

Answer:

Step-by-step explanation: the conjugate of 5i is -5i