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Mathematics 7 Online
OpenStudy (samsan9):

help me solve this application proble?

OpenStudy (ipwnbunnies):

Just write out the problem.

OpenStudy (samsan9):

\[\sin \theta= \frac{ 1 }{3},0<\theta<\frac{ }{ 2 }\]

OpenStudy (samsan9):

find the double angle for sin cos and tan

OpenStudy (samsan9):

its pi over 2

OpenStudy (ipwnbunnies):

Can't you use a calculator? There's no special angle with a sine of 1/3.

OpenStudy (samsan9):

what do you mean?

OpenStudy (samsan9):

|dw:1400370272859:dw|

OpenStudy (ipwnbunnies):

'll tell you the angle with a sine of 1/3 is 19.5 degrees. It's not a nice angle to work with. And use a double-angle identity won't help. This question confuses me.

OpenStudy (samsan9):

it cant be in decimal form

OpenStudy (samsan9):

it has to be using the double angle formulas and all that

OpenStudy (ipwnbunnies):

The angle is an irrational number. X3

OpenStudy (ipwnbunnies):

Sorry, I'm not sure then.

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