Question

Find: -

Answer 1

\[\ln |3e^{5i+2}\times7e^{{-2i}}|.\]

Answer 2

\[\ln |3e^{5i+2}\times7e^{{-2i}}|\]
\[=\ln |21e^{3i+2}|\]
\[=\ln|21|+\ln |e^{3i+2}|\]
\[=\ln|21|+3i+2\]

Answer 3

\(=2+\ln21=2+\ln3+\ln7\)
3i is not in the answer.

Answer 4

how sir @Vincent-Lyon.Fr

Answer 5

& ur answer is also correct:)

Answer 6

For any complex number written as : \(\Large re^{i\theta}\) with r positive real number, then
\(\Large
|re^{i\theta}|=r\)

Answer 7

ya sir but how will we get '2' in the answer?

Answer 8

@Vincent-Lyon.Fr Plz:)

Answer 9

k! k! i got that. thanx:)

Answer 10

\(\ln{e^2}=2\ln e=2\times1=2\)

Answer 11

thanx:)

Answer 12

i dont understand

Answer 13

\(\Large |e^{3i}|=1\)