If sin x = 0.6, what is the value of cos x?

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Alan P. Share
Apr 15, 2015

#sin^2(x)+cos^2(x) = 1#

If #sin(x) = 0.6#
then
#(0.6)^2+cos^2(x) = 1#

#cos^2(x) = 1 - 0.36 = 0.64#

#cos(x) = +- 0.8#

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