551. Show that f(t) = t - sint is increasing and differentiable. Although there is no...

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551. Show that f(t) = t - sint is increasing and differentiable. Although there is no explicit formula for the inverse function f-, it is possible to find both D-() and D( 1), and to show that f- has points of nondifferentiability. Do so. Make a diagram. 551. Show that f(t) = t - sint is increasing and differentiable. Although there is no explicit formula for the inverse function f-, it is possible to find both D-() and D( 1), and to show that f- has points of nondifferentiability. Do so. Make a diagram.