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Mathematics 9 Online
OpenStudy (anonymous):

Solve 0<=Theta<2pi

OpenStudy (anonymous):

OpenStudy (anonymous):

hey

Nnesha (nnesha):

hey can you solve for sin(theta + 2pi/3)

Nnesha (nnesha):

brb

OpenStudy (anonymous):

i got sin(theta+2pi/3)=1/2

Nnesha (nnesha):

plz ignore me im sleepy not in a moO_Od to do math rn :( and my brain isn't working :(

OpenStudy (anonymous):

its fine :)

OpenStudy (anonymous):

surji can you help me?

OpenStudy (anonymous):

\[\sin \left( \theta+\frac{ 2 \pi }{ 3 } \right)=\frac{ 1 }{ 2 }=\sin (2 n \ pi+\frac{ \pi }{ 6 }),\sin \left( 2 n pi+\pi-\frac{ \pi }{ 6 } \right)\] \[\theta=2n \pi+\frac{ \pi }{ 6 }-\frac{ 2 \pi }{ 3 },2 n \pi+\pi-\frac{ \pi }{ 6 }-\frac{ 2 \pi }{ 3 }\] where n is an integer. \[\theta=2n \pi-\frac{ 3\pi }{ 6 },~or~\theta=2 n \pi-\frac{ \pi }{ 2 }\] put n=1 \[\theta=2 \pi-\frac{ \pi }{ 2 }=\frac{ 3 \pi }{ 2 }\] \[\theta=2 n \pi+\frac{ 6 \pi-\pi-4 \pi }{ 6 }\] \[\theta=2 n \pi-\frac{ \pi }{ 6 }\] put n=1 \[\theta=2 \pi-\frac{ \pi }{ 6 }=\frac{ 11\pi }{ 6 }\]

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