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28 May, 14:39

The average value of cosx on the interval [-3, 5] is

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  1. 28 May, 15:04
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    To get the value of cosX on the interval [-3,5] we proceed as follows:

    Using Pythagorean theorem we shall obtain the hypotenuse as follows:

    c²=a²+b²

    thus

    c² = (-3) ²+5²

    c² = 34

    c = √34

    hence:

    cos X = (adjacent) / (hypotenuse)

    cos X=-3/√34
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