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Question Number 202352 by cortano12 last updated on 25/Dec/23

Commented by cortano12 last updated on 26/Dec/23

Commented by cortano12 last updated on 26/Dec/23

$$\mathrm{it}\mathrm{is}\mathrm{correct}?$$

Commented by mr W last updated on 25/Dec/23

$$1979+T\left(1979\right)+T\left(T\left(1979\right)\right)$$$$=1979+26+8$$$$=2013$$$$$$$$1985+T\left(1985\right)+T\left(T\left(1985\right)\right)$$$$=1985+23+5$$$$=2013$$$$$$$$1991+T\left(1991\right)+T\left(T\left(1991\right)\right)$$$$=1991+20+2$$$$=2013$$$$$$$$2003+T\left(2003\right)+T\left(T\left(2003\right)\right)$$$$=2003+5+5$$$$=2013$$

Commented by cortano12 last updated on 25/Dec/23

$$\mathrm{do}\mathrm{you}\mathrm{have}\mathrm{any}\mathrm{formula}?$$

Commented by mr W last updated on 25/Dec/23

$$i{don}^{\prime }tthinkwecansolvethisusing$$$$aformula.wecanonlyestimatein$$$$whichrangenshouldlieandthen$$$$checkthenumbersinthisrange$$$$onebyone.$$

Commented by mr W last updated on 25/Dec/23

Commented by mr W last updated on 26/Dec/23

$$allsaidiscorrect,butit{doesn}^{\prime }thelp$$$$somuch.you{can}^{\prime }tcalculateS\left(N\right)$$$$withaformula.$$

Commented by MathematicalUser2357 last updated on 26/Dec/23

$$\mathrm{what}\mathrm{the}\mathrm{limit}\mathrm{is}\mathrm{grapher}?$$

Commented by mr W last updated on 26/Dec/23

$$whatdoyouwanttoknowexactly?$$$$whatdoyoumeanwith‘‘the{limit}^{″}?$$

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