samanthavalverde497 samanthavalverde497
  • 21-05-2020
  • Mathematics
contestada

Find [2(cos240degrees + i sin240degrees)]^4

Find 2cos240degrees i sin240degrees4 class=

Respuesta :

surjithayer10 surjithayer10
  • 21-05-2020

Answer:

B

Step-by-step explanation:

[tex][2(cos240+isin240)]^4\\=[2e^{240 i}]^4\\=2^4[e^{960i}]\\=16(cos960+isin960)\\=16[cos(360 \times 2+240)+i sin(2\times360+240)]\\=16(cos240+isin240)[/tex]

Answer Link

Otras preguntas

[tex]\sf 2x+21=3[/tex] Free
Safe needle devices should: a. Provide a barrier between the healthcare worker's hands and the needle after use b. Work passively c. Be reusable d. Both b and c
There can be no camera without ...? a. film b. photographer c. a lens d. flashblulb
hey can i get some help
[tex]\sf 6-2x+5+4x[/tex] Last one! bye! Thanks!
pls help me for my geometry class
Find the volume of the following pyramid.
The word plastic as used in the passage means .
Find the number that makes the ratio equivalent to 2:4 16:
4. Two objects were lifted by a machine. One object had a mass of 2 kilograms, and was lifted a t a speed of 2 m/sec. The other had a mass of 4 kilograms and wa