Question

Conjugate of the complex number 4 is ?​

Answer 1

Step-by-step explanation:

To find the complex conjugate of 4+7i we change the sign of the imaginary part. Thus the complex conjugate of 4+7i is 4 - 7i. ... We find that the answer is a purely real number - it has no imaginary part. This always happens when a complex number is multiplied by its conjugate - the result is real number.

Answer 2

Answer:

4-5i.

Correct question:

Conjugate of the complex number 4+5i is ?

Step-by-step explanation:

A complex conjugate of a complicated range is some other complicated range whose actual component is similar to the authentic complicated range and the importance of the imaginary component is identical with the other sign.

A complicated range has the shape a + ib,

1. where a and b are actual numbers;
2. a is the actual component,
3. b is the imaginary component, and
4. i is an imaginary range equal to the basis of poor 1.

The complicated conjugate of a + ib with actual component 'a' and imaginary component 'b' is given through a-ib,

• whose actual component is 'a' and imaginary component is'-b'.
• a-ib is the inverse of a+ib about the actual axis (X-axis) inside the argand plane.

The complicated conjugate of a complicated range is used to rationalise the complicated range.

Hence, with this ,

the conjugate of the complex number 4+5i is 4-5i.

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