# Online Help With Precalculus Homework Answers

Choose your precalculus topic and get help as per your convenience. Students can also take homework help for Math. TutorVista offers well-designed online sessions for each Math topic and apart from this, students can also take free demo sessions to gauge their compatibility with this learning process. Experience your precalculus tutorial today.

**Conic Sections **: Circle, parabola, ellipse and hyperbola are known as conic sections because each may be thought of as a section of a cone by cutting it with a plane.

**Limits****:** This page is about limits and here students will be guided to learn the concept of limits with detail explanation.

** Differentiation ** : In this page we learn the concept of derivability, process of differentiation, methods of differentiation and also obtain the second order derivatives of functions.

**Derivatives ****:** Derivatives is an important topic in math. This page will help you to understand what derivatives are and get proper calculus help.

Learn about derivatives here and improve your math learning.

**Integration**** :** This page is based on integration. Learn about the concept integration and workout integration examples here. As integration is a very important topics within calculus, this learning will be proper calculus help.

Pre-calculus is an interesting area of math for students because of its multi-purpose nature. It reviews previously learned topics like trigonometry, introduces new topics like matrices and determinants, and prepares students for a formal course in calculus for the following year. Pre-calculus is sometimes referred to as algebra 3 because it builds upon basic algebraic concepts that were learned in high school. In some educational institutions, pre-calculus is divided into separate algebra and trigonometry courses to provide a solid foundation for a calculus course.

### Effective and Convenient Pre-Calculus Help Is Available Online

Many students struggle with pre-calculus and need additional assistance. Reliable online help for homework assignments is available here at 24HourAnswers.com. Our online help for homework comes in two forms: you can submit your materials to our pre-calculus tutors who will offer guidance and advice to help you arrive at the appropriate solutions, or you can sign up for a live online tutoring session with a knowledgeable pre-calculus tutor who will provide one-one-one instruction to help you increase your level of understanding.

### We Can Help You Master the Typical Content Found in Most Pre-Calculus Courses

Typical content for a regular pre-calculus course includes:

- Functions and their graphs
- Polynomial and rational functions
- Exponential and logarithmic functions
- Trigonometry
- Systems of equations and inequalities
- matrices and determinantsM
- Sequences, series, and probablility

While all these topics are important, it is fair to say that the topic of exponential and logarithmic functions is the most widespread in various fields of study, from business math to theoretical physics. As an interesting example, consider the following equation where we would like to solve for x:

A quick review of three basic logarithm rules:

## product rule: ln (ab) = ln a + ln b

## quotient rule: ln (a/b) = ln a - ln b

## power rule: ln a^{n} = n ln a

shows that none will be helpful here. One technique for solving this equation is to multiply both sides by e^{x}. The result is:

After subtracting 3e^{x} from both sides, we have:

After careful consideration of this equation, you may recognize it as a quadratic, with e^{x} taking the place of x. We can therefore factor this just as we would any quadratic equation:

Setting each factor equal to zero, we have:

Adding 2 and adding 1 to the left and right equations, respectively gives:

Now, finally, in each case we can take the natural log of both sides:

## ln e^{x} = ln 2 and ln e^{x} = ln 1

Remembering that ln e^{x} = x, we have our two solutions:

This example has served to review some of the basic properties of logarithms and to illustrate an early creative twist that was necessary for solving the given equation.

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