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anonymous
 3 years ago
2 cos theta = 1, find all solutions
anonymous
 3 years ago
2 cos theta = 1, find all solutions

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Ok, so think of theta as a variable

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0if theta was an 'x' how would you solve?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0to be honest I have no clue.

shaik0124
 3 years ago
Best ResponseYou've already chosen the best response.02 cos theta=1 cos theta=1/2 theta=cos inverse(1/2) theta=60degrees

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ok, so i would divide 2 from both sides?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1357848817327:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Now, you know cos theta equals 1/2..now you want to find theta, do you know how?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0oh! okay and would I just look for cos (x) value on the unit circle right?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Umm, you could do that. But im not sure if you would have the unit circle with you on your tests.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0There is another way to do it, if you have a graphing calc or if you memorized the cos and sin values of the major degrees on the circle.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0well no lol my precal teacher was trying to explain how to but I couldn't understand

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Ohh, ok. Well try to memorize the major degrees..like 30, 60, 45, 90, 180, 270, 360.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0But if you were to use your unit circle, you would look for the degrees with a cos (x value) of 1/2

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1357849233772:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ok, so would i use ALL of the radian values of cos 1/2?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0do you know the cos and sin values of the angles I drew?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Yes, all of the values, bc the problem says find ALL

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0thank you so much, you've been a lot of help

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0so the solutions would be pi/3 and 5pi/3?
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