De Moivre's Theorem | Powers of Complex Numbers

[@user-bx8hd8bq6d]

Good day sir
Why did you use positive 1 while there is -1 at the Ref angle and where did you take that pi where you subtract pi/3

[@zitounimohamed449]

Thanks for the vidéo

[@tangbardavidnaanbe6170]

Thank you sir

[@johnadam1214]

Sir i understand everything but u see how did u get cos20π/3 to be -½ and sin20π/3 to be √3/2..... Ive been following the series but u see this and that radian conversion tough time sir pls am having exams soon sir. Thank you sir

[@fattoums]

Thank you for the video, i have learnt a lot. what i do not get is how you find which quadrant the angle is from. If there’s a video to that can you please share the link? Thank you

[@tambuwalmathsclass]

ua-cam.com/video/tNQEJRE9ri8/v-deo.htmlsi=iEPUsgOd8UiBTesS

[@SuperYoonHo]

Thanks sir!!! Hope you had a good day

[@tambuwalmathsclass]

Yes, thank you

[@SuperYoonHo]

@@tambuwalmathsclass 😁😁🙏🙏

[@ekramabera2508]

Thank you for the video sir but i have some question that when you make the cosine and sine value positive and negative and when you add and substracte pi

[@prosperapeadongor3511]

Contributers
I think you should have go step by step so some as who just beginners of mathematics can also catch up. like showing the workings. By the way congratulations once again

[@jacklineemmanuel1280]

U good sir ,🙏🙏

[@tambuwalmathsclass]

Thank you

[@user-hm6pq6pe3z]

I think there is some problem with Q2

[@HaymanotYohannes-ob3vc]

Using Euler's formula

[@pedrodalledone1386]

Mate why sin 20 pi divides by 3 is minus half

[@sawdheeq]

Why did you minus Pi/3 with 2Pi. I thought it's naturally -Pi/3

[@kapempechipale2171]

He made a mistake

[@adamabdul-lateef3224]

Please who do we press the cos to the pii

[@tambuwalmathsclass]

I don't understand the question