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29 January, 17:17

What is the cosine if the sine=√5:6

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  1. 29 January, 17:43
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    cosine = √31/6

    Step-by-step explanation:

    It is given that,

    sine=√5/6

    we know that, sine = opposite side/Hypotenuse

    To find Adjacent side

    Adjacent side = √ (Hypotenuse² - opposite side²)

    Adjacent side = √ (6² - √5²) = √ (36 - 5) = √31

    To find cosine

    cosine = Adjacent side/Hypotenuse

    cosine = √31/6
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