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anonymous
 5 years ago
Help with Trig
sin X + 2 sin X cos X= 0
solve for all possible radian solutions
(please explain each step) Thank you
anonymous
 5 years ago
Help with Trig sin X + 2 sin X cos X= 0 solve for all possible radian solutions (please explain each step) Thank you

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0do you know your trig identities?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, 2 sin x cos x = sin 2A

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0good, then when does sin(x) + sin(2x) = 0? recall also that " sin(x) = sin(x)" that might be useful

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0sin(2x) = sin(x) sin(2x) = sin(x) 2x = x 2x + x = 0 3x = 0 .... when x = 0 thats what I come up with as a solution....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.00 and pi i believe are the answers

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thats what I got as an answer, but the answers in the back of the textbook says differently : pi k, 2 pi/3 +2 pi k, 4 pi/3 +2pi k

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0ahhh.... ALL possible solutions involves an interger constant of "k"

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0there do appear to be 3 spots between 0 and 2pi that match up...

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i see it, but i dont understand

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how to get the points without knowing it

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0...yeah, trig is highly visual.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0we could try this: sin(x) + 2 sin(x) cos(x)= 0 sin(x)(1 + 2cos(x)) = 0

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0sin(x) = 0 is a solution and (1+2cos(x)) = 0 are solutions

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.01+ 2 cos(x) = 0 2cos(x) = 1 cos(x) = 1/2

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.00, pi for sin(x) cos(x) is negative in Q2 and Q3...

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0cos(pi/3) = 1/2 .... 60 degrees. that would make it 120 degrees and 240 degrees as well.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.02pi/3 + k2pi and 4pi/3 + k2pi...right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, thank you very much!... I can see a light at the end of the tunnel!!! thank you

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0:) all it takes is a little persistents and alot of luck lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you, your right about that!!
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