Question

Find the real and imaginary parts of the conjugate of the
complex number -5i^15-6i^-8​

Answer 1

Step-by-step explanation:

${( - 5)i}^{15} - 6 {i}^{ - 8}$

$= - 5 \times { ({i}^{2} })^{7}.i - 6( { {i}^{2} )}^{ - 4}$

$= - 5 \times { (- 1})^{7} \times i - 6 \times {( - 1)}^{ - 4}$

$= ( - 5) \times ( - 1) \times i - \frac{6}{ {( - 1)}^{4} }$

$= 5i - 6$