Question

all solutions for 2cos3theta=1

Answer 1

Divide both sides by 2.

Answer 2

what about after that???

Answer 3

Do you know an angle whose cosine is 1/2?

Answer 4

60 and 300??

Answer 5

what do you do with the 3 theta??

Answer 6

So we know that 3 theta is 60 and 300 but... if you want all of the solutions of theta that are between 0 and 360 you must find all the 3 theta solutions between 0 and 1080.

Answer 7

???

Answer 8

\[3\theta =60^{o},300^{o},420^{o},660^{o}, 780^{o}, 1020^{o}\]

Answer 9

THANK YOU SO MUCH :)
what about tan3\[\tan3\theta=\sqrt{3}/3\]

Answer 10

\[\theta = 20^{o}, 100^{o},140^{o}, 220^{o}, 260^{o}, 340^{o}+2\pi n\]

Answer 11

\[3\theta = 30^{o},150^{o},390^{o},510^{o},750^{o},870^{o}\]

Answer 12

what about\[2\tan^2\theta+\tan \theta=2-2\tan\]
using the quadratic formula
please show work
thank you so much!!!!

Answer 13

\[\theta = 10^{o}, 50^{o}, 130^{o},170^{o},250^{o}, 290^{o}+2\pi n\]

Answer 14

Get it equal to 0.

Answer 15

okay thanks!!!!

Answer 16

yw