34. En cada uno de los siguientes casos, halle el valor de la constante \( A \) qu hace la función dada \( f(x) \) continua para todo \( x \). a) \( f(x)=\left\{\begin{array}{ll}2 x+3 & \text { si } x<1 \\ A x-1 & \text { si } x \geq 1\end{array}\right. \) b) \( f(x)=\left\{\begin{array}{ll}\frac{x^{2}-1}{x+1} & \text { si } x<-1 \\ A x^{2}+x-3 & \text { si } x \geq-1\end{array}\right. \)

Given the following velocity function of an object moving along a line, find the position function with the given initial position.

Evaluate the following definite integral using the Fundamental Theorem of Calculus. \( \frac{1}{7} \int_{0}^{\ln 4} e^{x} d x \)

Find the point(s) at which the function \( f(x)=10-|x| \) equals its average value on the interval \( [-10,10] \) The function equals its average value at \( x=\square \) (Type an integer or a fraction. Use a comma to separate answers as needed.)

\( \int _ { - 1 } ^ { 1 } \frac { x \cos ^ { 2 } x } { 1 + x ^ { 2 } } d x \)

Given the following velocity function of an object moving aiong a line, find the position function with the given initial position. \[ v(t)=2 \sqrt[3]{t}, s(0)=3 \] The position function is \( s(t)=\square \)