Consider the following function. f(x) = 5 cos(πx) x What conclusions can be made about the series [infinity] 5 cos(πn) n n = 1 and the Integral Test? The Integral Test can be used to determine whether the series is convergent since the function is positive and decreasing on [1, [infinity]). The Integral Test can be used to determine whether the series is convergent since the function is not positive and not decreasing on [1, [infinity]). The Integral Test can be used to determine whether the series is convergent since it does not matter if the function is positive or decreasing on [1, [infinity]). The Integral Test cannot be used to determine whether the series is convergent since the function is not positive and not decreasing on [1, [infinity]). There is not enough information to determine whether or not the Integral Test can be used or not.