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baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
how can you get rid of the cosine?
 2 years ago

tammyhawatmeh Group TitleBest ResponseYou've already chosen the best response.0
arc cos?
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
do you know the unit circle?
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
okay, so where is cos(θ) = sqrt(2/2) ?
 2 years ago

tammyhawatmeh Group TitleBest ResponseYou've already chosen the best response.0
3pi/4
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
Yes.. correct.
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
what about 5pi/4 ?
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
now do u need general solution or within the range 0 to 2pi ?
 2 years ago

tammyhawatmeh Group TitleBest ResponseYou've already chosen the best response.0
these are the directionsSolve the given equation. (Enter your answers as a commaseparated list. Let k be any integer. Round terms to two decimal places where appropriate.)
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
means genearalized solution, can u generalize this ?
 2 years ago

tammyhawatmeh Group TitleBest ResponseYou've already chosen the best response.0
5pi/4 ,5pi/4,3pi/4,3pi/4
 2 years ago

baldymcgee6 Group TitleBest ResponseYou've already chosen the best response.1
There is an infinite amount of solutions, you need to write it in a way to GENERALIZE the solution.
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
so let me generalize it. cos function is periodic with 2pi. so values repeat after every 2pi*k here, \(\theta =\pm(3\pi/4+2\pi k),\pm(5\pi/4+2\pi k)\)
 2 years ago

tammyhawatmeh Group TitleBest ResponseYou've already chosen the best response.0
ohh i see but why do u add the 2pik at the end ? because it is a periodic function?
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.2
yes, as i said cos function is periodic with 2pi. so if a is solution, so is a+2pi, a2pi,a+4pi,a4pi, and so on
 2 years ago

tammyhawatmeh Group TitleBest ResponseYou've already chosen the best response.0
ohh i see i missed this whole lesson on this section and i dont know any of it
 2 years ago
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