Let f be the function given by f(x)=2cosx+1. what is the approximation for f(1.5)

Let f be the function given by f(x)=2cosx+1. what is the approximation for f(1.5)

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  1. Function:
    f(x) = 2 cos x +1

    Note: The values of x should be given in radians.

    Therefore;

    Substituting for x = 1.5 radians

    f(1.5) = 2 Cos 1.5 + 1 ≈ 1.1415

  2. 1.1414

    Step-by-step explanation:

    Given that f is  a function given by

    f(x) =2cosx +1

    Here x is taken in radians.

    Hence when x =1.5

    we have cos 1.5 = 0.0707

    2cosx = 0.1414

    And hence

    2cosx+1=1+0.1414

    =1.1414

    Thus we get

    f(1.5) = 1.1414 apprxy

  3. i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.

    the answer is 18.

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