7. \( \lim _{x \rightarrow \infty} \frac{x^{5}+3 x^{2}-8 x+1}{4 x+8 x^{5}+3 x^{2}} \) 9. \( \lim _{x \rightarrow \infty} x \sqrt{4^{x+3}} \)

Hallar la derivada de la función \( f(x)=\operatorname{sen}\left(x^{2}-x\right) \) \( 2 x \cos \left(x^{2}-x\right)-\cos \left(x^{2}-x\right) \) \( -\operatorname{sen}(4 x-3) \) \( 4 \operatorname{sen}(4 x-3) \) \( -4 \operatorname{sen}(4 x-3) \)

Question A toy rocket is launched from the ground with an initial velocity of 48 feet per second. The height of thenecket is modeled by \( h(t)=-16 t^{2}+48 t \), where \( h(t) \) is the height the rocket in feet, and \( t \) is the time in seconds. Which statement correctly describes the range of this situation? Answer The range means the rocket started at o feet and reached a maximum height of 48 feet.

\( \begin{array}{ll}y+z)^{2}+x+z=4 & \text { Poevo: } \\ \text { Hallar } \frac{\partial z}{\Delta x} & \\ & \end{array} \)

फलन \( \mathrm{f}(\mathrm{x})=\cos \mathrm{x}-\sin \mathrm{x} \) का परिसर ज्ञात कीजिए

Derivar \( y=\frac{\cot 3 x}{3} \)