Chapter 8.6, Problem 2P

(a)

To determine

To show: The result ${\varphi }_2\left(t\right)\le \varphi \left(t\right)\le {\varphi }_1\left(t\right)$ by using the given data.

(b)

To determine

The value of ${\varphi }_1\left(t\right)$ and ${\varphi }_2\left(t\right)$ and show that ${\varphi }_1\left(t\right)\to \infty$ for some t between $t=1$ and as $t=\ln 2\cong 0.69315$.

(c)

To determine

To show: That the value of $\varphi \left(t\right)\to \infty$ when $t\cong 0.932$ by using the given data.