find the acute angles between the curves at their points of intersection. use degrees rounded to one decimal…

find the acute angles between the curves at their points of intersection. use degrees rounded to one decimal place. (the angle between two curves is the angle between their tangent lines at the point of intersection. enter your answers as a comma - separated list.) y = 4x², y = 4x³

find the acute angles between the curves at their points of intersection. use degrees rounded to one decimal place. (the angle between two curves is the angle between their tangent lines at the point of intersection. enter your answers as a comma - separated list.) y = 4x², y = 4x³

Answer

Explanation:

Step1: Encontrar los puntos de intersección

Igualamos las dos ecuaciones: $4x^{2}=4x^{3}$. Re - escribimos como $4x^{3}-4x^{2}=0$, luego $4x^{2}(x - 1)=0$. Las soluciones son $x = 0$ y $x=1$. Para $x = 0$, $y=0$; para $x = 1$, $y = 4$. Los puntos de intersección son $(0,0)$ y $(1,4)$.

Step2: Encontrar las derivadas

La derivada de $y = 4x^{2}$ es $y'=8x$ (usando la regla de la potencia $\frac{d}{dx}(ax^{n})=nax^{n - 1}$). La derivada de $y = 4x^{3}$ es $y'=12x^{2}$.

Step3: Encontrar las pendientes de las tangentes en los puntos de intersección

En $x = 0$: Para $y = 4x^{2}$, $m_1=8(0)=0$. Para $y = 4x^{3}$, $m_2=12(0)^{2}=0$. El ángulo entre las tangentes en $(0,0)$ es $\theta=0^{\circ}$. En $x = 1$: Para $y = 4x^{2}$, $m_1=8(1)=8$. Para $y = 4x^{3}$, $m_2=12(1)^{2}=12$. Usamos la fórmula $\tan\theta=\left|\frac{m_1 - m_2}{1 + m_1m_2}\right|$. Sustituyendo $m_1 = 8$ y $m_2=12$: $\tan\theta=\left|\frac{8 - 12}{1+(8\times12)}\right|=\left|\frac{- 4}{1 + 96}\right|=\frac{4}{97}$. $\theta=\arctan\left(\frac{4}{97}\right)\approx2.4^{\circ}$.

Answer:

$0.0,2.4$