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Ira Lisetskai [31]
4 years ago
9

Pues, quiero saber cómo simplify ese número.

Mathematics
1 answer:
Soloha48 [4]4 years ago
7 0

Answer:

1. 2i\sqrt[]{12}

2. 3i\sqrt[]{10}

Step-by-step explanation:

Lo primero que tienes que saber es que las raíces cuadradas negativas son imaginarias. Luego, resuelve la raíz normalmente pero siempre dejando el signo negativo.

\sqrt[]{-48}

Primero pensemos cuáles números multiplican para dar 48.

6 y 8, ahora, como queremos poder eliminar números de la raíz, veamos si hay algún número más que se pueda reescribir de otra forma; por ejemplo, 8 es lo mismo que 2^3 o 2^2*2. Como la raíz es cuadrada, siempre buscamos tener números con exponentes cuadrados para poder eliminarlos más fácilmente.

Recordamos también que - es lo mismo que -1

\sqrt[]{-1} *\sqrt[]{2^2*2*6} esta es la forma reescrita de la raíz -48.

La raíz cuadrada de -1 es i, porque i significa imaginario. Ahora, Sacamos el 2 que está con exponente cuadrado y dejamos el otro 2 y 6 dentro de la raíz.

i*2\sqrt[]{2*6}

Resolviendo y reescribiendo quedaría...

2i\sqrt[]{12}

----------------------------------------------------------------------------------------------------------

\sqrt[]{-90}

Reescribiendo esto quedaría...

90 es la multiplicación de 30*3 o 15*6 o 10*9

De todos estos, el único que me sirve es 10*9 ¿Por qué? porque 9 se puede reescribir como 3^2 lo cual eliminaría el 3 de la raíz.

\sqrt[]{-1}*\sqrt[]{3^2*10}

Al resolver nos quedaría...

i*3\sqrt[]{10}

Ordenándolo...

3i\sqrt[]{10}

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