Chapter 23
Technical Mathematics with Calculus · 223 exercises
Problem 10
Find the derivative of each function. Check some by calculator. $$y=\frac{5}{\left(x^{2}-1\right)^{2}}$$
7 step solution
Problem 10
Evaluate each limit. $$\lim _{x \rightarrow 4} \frac{x^{2}-16}{x-4}$$
4 step solution
Problem 11
Find, by hand, all of the terms in each probability distribuisn, and graph. $$\text { If } y=3 x^{3}+2 x^{2}, \text { find } y^{\prime \prime}(2)$$
5 step solution
Problem 11
Find the derivative \(d x / d y\) of \(x\) with respect to \(y.\) $$x=(y-2)(y+3)^{5}$$
4 step solution
Problem 11
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Negative Exponent. $$y=x^{-5}$$
4 step solution
Problem 11
Find the derivative of each function. Check some by calculator. $$y=\left(a-\frac{b}{x}\right)^{2}$$
4 step solution
Problem 11
Evaluate each limit. $$\lim _{x \rightarrow-3} \frac{x^{2}+2 x-3}{x+3}$$
3 step solution
Problem 12
Find, by hand, all of the terms in each probability distribuisn, and graph. $$\text { If } f(x)=x^{2}-4 x^{4}, \text { find } f^{\prime \prime}(3)$$
4 step solution
Problem 12
Find the derivative \(d x / d y\) of \(x\) with respect to \(y.\) $$x=\frac{y^{2}}{(4-y)^{3}}$$
5 step solution
Problem 12
Some of these can be multiplied out. For a few of these, take the derivative both before and after multiplying out, and compare the two. $$y=x^{2} \sqrt{3-4 x}$$
3 step solution
Problem 12
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Negative Exponent. $$y=2 x^{-3}$$
4 step solution
Problem 12
Find the derivative of each function. Check some by calculator. $$y=\left(a+\frac{b}{x}\right)^{3}$$
5 step solution
Problem 12
Evaluate each limit. $$\lim _{x \rightarrow 1} \frac{x^{3}-x^{2}+2 x-2}{x-1}$$
4 step solution
Problem 13
The velocity of a moving point is given by the first derivative of the displacement, and the acceleration is given by the second derivative of the displacement. Find the velocity and acceleration at \(t=1.55 \mathrm{s}\), of a point whose displacement is given by $$s=4.55 t^{3}+2.85 t^{2}+5.22 \quad \mathrm{cm}$$ where \(t\) is the elapsed time, in seconds.
4 step solution
Problem 13
Find \(d y / d x\). (Treat \(a\) and \(r\) as constants.) $$5 x-2 y=7$$
3 step solution
Problem 13
Some of these can be multiplied out. For a few of these, take the derivative both before and after multiplying out, and compare the two. $$y=\sqrt{x}\left(3 x^{2}+2 x-3\right)$$
6 step solution
Problem 13
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Negative Exponent. $$y=\frac{1}{x}$$
4 step solution
Problem 13
Limits Involving Zero or Infinity $$\lim _{x \rightarrow 0}\left(4 x^{2}-5 x-8\right)$$
3 step solution
Problem 13
Find the slope of the tangent or the rate of change at the given value of \(x\) $$y=\frac{1}{x^{2}} \text { at } x=1$$
2 step solution
Problem 13
Find the derivative of each function. Check some by calculator. $$y=\sqrt{1-3 x^{2}}$$
7 step solution
Problem 14
Find \(d y / d x\). (Treat \(a\) and \(r\) as constants.) $$2 x+3 y^{2}=4$$
4 step solution
Problem 14
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Negative Exponent. $$y=\frac{1}{x^{2}}$$
4 step solution
Problem 14
Limits Involving Zero or Infinity $$\lim _{x \rightarrow 0} \frac{3-2 x}{x+4}$$
3 step solution
Problem 14
Find the slope of the tangent or the rate of change at the given value of \(x\) $$y=\frac{1}{x+1} \text { at } x=2$$
3 step solution
Problem 14
Find the derivative of each function. Check some by calculator. $$y=\sqrt{2 x^{2}-7 x}$$
6 step solution
Problem 15
Find \(d y / d x\). (Treat \(a\) and \(r\) as constants.) $$x y=5$$
4 step solution
Problem 15
Some of these can be multiplied out. For a few of these, take the derivative both before and after multiplying out, and compare the two. $$y=\left(2 x^{2}-3\right) \sqrt[3]{3 x+5}$$
5 step solution
Problem 15
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Negative Exponent. $$y=\frac{3}{x^{3}}$$
4 step solution
Problem 15
Find the derivative of each function. Check some by calculator. $$y=\sqrt{1-2 x}$$
6 step solution
Problem 15
Find the slope of the tangent or the rate of change at the given value of \(x\) $$y=x+\frac{1}{x} \text { at } x=2$$
3 step solution
Problem 16
Find \(d y / d x\). (Treat \(a\) and \(r\) as constants.) $$x^{2}+3 x y=2 y$$
4 step solution
Problem 16
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Negative Exponent. $$y=\frac{3}{2 x^{2}}$$
3 step solution
Problem 16
Limits Involving Zero or Infinity $$\lim _{x \rightarrow 0} \frac{3+x-x^{2}}{(x+3)(5-x)}$$
3 step solution
Problem 16
Find the derivative of each function. Check some by calculator. $$y=\frac{b}{a} \sqrt{a^{2}-x^{2}}$$
8 step solution
Problem 16
Find the slope of the tangent or the rate of change at the given value of \(x\) $$y=\frac{1}{x} \text { at } x=3$$
3 step solution
Problem 17
Find \(d y / d x\). (Treat \(a\) and \(r\) as constants.) $$y^{2}=4 a x$$
5 step solution
Problem 17
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Fractional Exponent. $$y=7.5 x^{1 / 3}$$
5 step solution
Problem 17
Limits Involving Zero or Infinity $$\lim _{x \rightarrow 0}\left(\frac{1}{2+x}-\frac{1}{2}\right) \cdot \frac{1}{x}$$
4 step solution
Problem 17
Find the derivative of each function. Check some by calculator. $$y=\sqrt[3]{4-9 x}$$
7 step solution
Problem 17
Find the slope of the tangent or the rate of change at the given value of \(x\) $$y=2 x-3 \text { at } x=3$$
3 step solution
Problem 18
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Fractional Exponent. $$y=4 x^{5 / 3}$$
5 step solution
Problem 18
Limits Involving Zero or Infinity $$\lim _{x \rightarrow 0} x \cos x$$
5 step solution
Problem 18
Find the derivative of each function. Check some by calculator. $$y=\sqrt[3]{a^{3}-x^{3}}$$
5 step solution
Problem 18
Find the slope of the tangent or the rate of change at the given value of \(x\) $$y=16 x^{2} \quad \text { at } x=1$$
3 step solution
Problem 19
Find \(d y / d x\). (Treat \(a\) and \(r\) as constants.) $$x^{3}+y^{3}-3 a x y=0$$
6 step solution
Problem 19
Find the derivative of each function. Verify some of your results by calculator. As usual, the letters \(a, b, c, \ldots\) represent constants. Power Function with Fractional Exponent. $$y=4 \sqrt{x}$$
3 step solution
Problem 19
Limits Involving Zero or Infinity $$\lim _{x \rightarrow \infty} \frac{2 x+5}{x-4}$$
5 step solution
Problem 19
Find the derivative of each function. Check some by calculator. $$y=\frac{1}{\sqrt{x+1}}$$
4 step solution
Problem 19
Find the slope of the tangent or the rate of change at the given value of \(x\) $$y=2 x^{2}-6 \quad \text { at } x=3$$
3 step solution
Problem 20
Find \(d y / d x\). (Treat \(a\) and \(r\) as constants.) $$x^{2}+y^{2}=r^{2}$$
3 step solution