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25 February, 11:16

Find sin0 if cos0 = 2/3

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  1. 25 February, 15:08
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    √5/3.

    Step-by-step explanation:

    Using the identity sin^2 O + cos^ O = 1

    sin^2 O = 1 - cos^2 O

    sin^2 O = 1 - (2/3) ^2

    sin^2 O = 1 - 4/9

    sin^2 O = 5/9

    sin O = √ (5/9)

    sin O = √5/3.
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