Question

C) (1/2) la puterea 1 - 1/2 la puterea 2

Dau coroana

Answer 1

Răspuns: $\red{\bf \dfrac{1}{4} }$

Explicație pas cu pas:

$\bf \bigg(\dfrac{1}{2}\bigg) ^1-\bigg(\dfrac{1}{2}\bigg) ^2= \dfrac{1}{2}-\dfrac{1^2}{2^2}=$

$\bf ~ \dfrac{ ^{2)}1~}{2} -\dfrac{1}{4}=\dfrac{2}{4}-\dfrac{1}{4}=\dfrac{2-1}{4}= \red{\boxed{\bf \dfrac{1}{4} }}$

$\green{\bf \underline{\star~Formule~pentru~puteri}:}$

$\bf a^{1} = a;$

$\bf (a^{n})^{m} = a^{n \cdot m};$

$\bf a^{n}\cdot a^{m} =a^{n+m};$

$\bf a^{n}: a^{m} =a^{n-m}$

==pav38==

Baftă multă !