- #1

- 32

- 3

- Homework Statement
- See image attachment

- Relevant Equations
- I(d, t) = Re[I (d) e ^ jωt]

This is a problem about converting from the phasor to time domain. I am having trouble following the math that the textbook is doing.

I was thinking the final answer should be:

i(d, t) = 0.20 cos(ωt + βd + 159◦) - 0.091 cos(ωt − βd + 185.6◦)

emphasize the minus 0.091 instead of plus 0.091 as shown in the image attachment and textbook.

Am I missing something here? Thank you.

I was thinking the final answer should be:

i(d, t) = 0.20 cos(ωt + βd + 159◦) - 0.091 cos(ωt − βd + 185.6◦)

emphasize the minus 0.091 instead of plus 0.091 as shown in the image attachment and textbook.

Am I missing something here? Thank you.