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Mathematics 11 Online
OpenStudy (yadanawala):

√3 csc θ - 2 = 0

OpenStudy (anonymous):

\[cosec \theta =2/\sqrt{3}\] thus \[\theta =60\]

OpenStudy (yadanawala):

OpenStudy (tylerd):

ok \[\csc (\theta)=\frac{ 2 }{ \sqrt{3} }\] \[\csc(\theta)=\frac{ a }{ b }\] \[\sin(\theta)=\frac{ b }{ a }\]

OpenStudy (tylerd):

so here we have \[\sin (\theta)=\frac{ \sqrt{3} }{ 2 }\]

OpenStudy (tylerd):

to find theta we can either look at a unit circle or do a sin^-1

OpenStudy (tylerd):

remember \[\sin (\theta) = \frac{ opposite }{ hypotenuse }\]

OpenStudy (tylerd):

and in this case we have a positive value

OpenStudy (tylerd):

so our reference angles are going to be in quadrants 1 and 2 where sin (the opposite side) is positive like so |dw:1408171441298:dw|

OpenStudy (tylerd):

|dw:1408171477971:dw|

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