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28 July, 04:31

If sin x =.42, what is cos x?

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  1. 28 July, 06:53
    0
    From the identity,

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

    then

    cos (x) = sqrt (1-sin^2 (x))

    where sin (x) is given as 0.42.

    Note that the above answer applies to 0
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