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For a college football field with the dimension shown, the angle for kicking a field goal from a ( horizontal) distance of x feet from the goal post is given by∅(x)=tan^(-1)⁡〖(29.25/x〗)-〖tan^(-1) (〗⁡〖10.75/x〗) .Show that f(t)=t/(a^3+t^2 ) is increasing for a>t

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    Could you have a clearer equation?

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    No

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