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baldymcgee6Best ResponseYou've already chosen the best response.1
how can you get rid of the cosine?
 one year ago

baldymcgee6Best ResponseYou've already chosen the best response.1
do you know the unit circle?
 one year ago

baldymcgee6Best ResponseYou've already chosen the best response.1
okay, so where is cos(θ) = sqrt(2/2) ?
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
now do u need general solution or within the range 0 to 2pi ?
 one year ago

tammyhawatmehBest 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.)
 one year ago

hartnnBest ResponseYou've already chosen the best response.2
means genearalized solution, can u generalize this ?
 one year ago

tammyhawatmehBest ResponseYou've already chosen the best response.0
5pi/4 ,5pi/4,3pi/4,3pi/4
 one year ago

baldymcgee6Best 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.
 one year ago

hartnnBest 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, \(\theta =\pm(3\pi/4+2\pi k),\pm(5\pi/4+2\pi k)\)
 one year ago

tammyhawatmehBest 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?
 one year ago

hartnnBest 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
 one year ago

tammyhawatmehBest 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
 one year ago
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