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OpenStudy (anonymous):
Find exact value for sin(pi/64).
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OpenStudy (anonymous):
This is the value my calculator got me: 0.00085673638834
OpenStudy (cwrw238):
there might not be an exact value - i believe calculators use something called mcclaurans series to work out sines - that value they return depends on how much memory they have. that value might not be exact.
OpenStudy (cwrw238):
the value might be irrational
OpenStudy (asnaseer):
this will involve a lot of messy algebra. this might help: https://docs.google.com/viewer?a=v&q=cache:XsUK1ARQMScJ:www.maths.manchester.ac.uk/~cds/articles/trig.pdf+&hl=en&gl=uk&pid=bl&srcid=ADGEESjYNyDMVGAWUJutsgeT2vdoFmmli7y29FhIyfA0Dt3XdOsd0KcRgcHau6YYy85OQfChDXLYA1u5OgfmT4aU7E2h_cXVVasLQDD72JlGPbPFofhm48SDqsyPdtFt6Fkj9jkZej9s&sig=AHIEtbScCooDXUF8xK3_Wny4nddtzFPrhA
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