17-05-2017
Mathematics

contestada

if sin x = 0.5 what is the value of cos X?
round the value to the nearest thousandth

Respuesta :

conrad4 conrad4

17-05-2017

cos(arcsin(0.5)) = 0.866

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Luv2Teach Luv2Teach

17-05-2017

Use the inverse button on your calculator in degree mode for this. Inverse sin of .5 gives you an x value of 30 (30 degree angle, that is). Now find the cos(30) and round. cos(30) = .866

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