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what is 2sin(7pi/4) in standard form

Guest Jul 23, 2017
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sin( 7·pi / 4 )  =  - sqrt(2) / 2

2 · sin( 7·pi / 4 )  =  - sqrt(2) / 2 · 2  =  -sqrt(2)

geno3141  Jul 23, 2017

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