Réitigh s(t)=-t^2-t | Réiteoir Mata Microsoft

Fachtóirigh

Luacháil

Tráth na gCeist

Polynomial

5 fadhbanna cosúil le:

Fadhbanna den chineál céanna ó Chuardach Gréasáin

https://socratic.org/questions/how-do-you-find-the-total-displacement-for-the-particle-whose-position-at-time-t

https://socratic.org/questions/how-do-you-find-the-average-velocity-of-the-position-function-s-t-3t-2-6t-on-the

https://socratic.org/questions/what-is-the-average-speed-of-an-object-that-is-moving-at-4-m-s-at-t-0-and-accele-2

https://socratic.org/questions/how-do-you-find-g-f-t-given-g-t-2t-5-and-f-t-t-2-5

https://socratic.org/questions/what-is-the-average-speed-on-t-in-0-5-of-an-object-that-is-moving-at-5-m-s-at-t-

Roinn

Cóipeáladh go dtí an ghearrthaisce

t\left(-t-1\right)

Fág t as an áireamh.

-t^{2}-t=0

Is féidir an trasfhoirmiú ax^{2}+bx+c=a\left(x-x_{1}\right)\left(x-x_{2}\right) a úsáid chun luach iltéarmach cearnach a fhachtóiriú, nuair is réitigh iad x_{1} agus x_{2} ar an gcothromóid chearnach ax^{2}+bx+c=0.

t=\frac{-\left(-1\right)±\sqrt{1}}{2\left(-1\right)}

Is féidir gach cothromóid san fhoirm ax^{2}+bx+c=0 a réiteach ag baint úsáid as an bhfoirmle chearnach : \frac{-b±\sqrt{b^{2}-4ac}}{2a}. Tugann an fhoirmle chearnach dhá réiteach, ceann amháin nuair is suimiú é ± agus ceann eile nuair is dealú é.

t=\frac{-\left(-1\right)±1}{2\left(-1\right)}

Tóg fréamh chearnach 1.

t=\frac{1±1}{2\left(-1\right)}

Tá 1 urchomhairleach le -1.

t=\frac{1±1}{-2}

Méadaigh 2 faoi -1.

t=\frac{2}{-2}

Réitigh an chothromóid t=\frac{1±1}{-2} nuair is ionann ± agus plus. Suimigh 1 le 1?

t=-1

Roinn 2 faoi -2.

t=\frac{0}{-2}

Réitigh an chothromóid t=\frac{1±1}{-2} nuair is ionann ± agus míneas. Dealaigh 1 ó 1.