# Pre Calculus Homework Help

For you guys taking High School or Pre-Calculus classes we have a lot to offer. We know how challenging the transition from High School to College can be. There's no need to struggle with incomplete study material.

Having a well explained list of solved problems can improve your learning 100 percent. Regrettably, current textbooks come mostly with the solutions to the sample problems, but they don't show detailed solutions.

One of the things students always complain is that they don't have enough solved problems to study with. With us, that's not a problem anymore!

**Submit by e-mail your problems to us for a free quote**.

Make sure to visit our store. There you'll find study guides for sale with hundreds of solved problems for Pre-Calculus, Trigonometry, Algebra, etc.

## Pre Calculus Topics

This is a list of subjects you may be interested on

**Algebra**- Systems of Equations.
- Word problems.
- Factorization.
- Polynomials
- Quadratic Equations

**Geometry**- Triangles.
- Areas and Volumes.
- Circles.
- Lines
- Planes

**Trigonometry**- Circles.
- Sine, Cosine, Tangent, Cotangent, Secant, Cosecant.
- Pythagoras Theorem.
- De Moivre's Formula.
- etc....

Send us an e-mail to **[email protected]** with your Pre Calculus Homework Problems and you'll get a free quote in hours. No strings attached!

## Our **Specialties**

#### Algebra

There are many Algebra topics covered in a Pre Calculus class, such as Systems of Equations, Word problems, Factorization, Polynomials, Quadratic Equations.

#### Geometry

We can help you with your Geometry homework, involving Triangles, Areas and Volumes, Circles, Lines, Planes, etc.

#### Trigonometry

Are you stuck with a Trigonometry assignment? Are you lost with Circles or with trigonometric functions such as Sine, Cosine, Tangent, Cotangent, Secant and Co-secant? We can help with that!

#### Basic Calculus

You will need to have some idea of Calculus to work on your pre-calculus course. We can cover you!

#### We provide help with ALL Math Subjects

Aside from Pre Calculus, we can also help with Stats, Calculus, Linear Algebra, Quantitative Methods, Decision Analysis, you name it

#### We are a partner you can trust

We have been online more than 10 years and we have worked successfully with thousands of satisfied customers

We feel how you feel when you have to deal with those hard Calculus problems. We can help with that extra edge that you need! We can provide you with step-by-step solutions. See some examples below:

**Problem 1.** Solve the following system of equations:

**Solution.** We have to find $x$ and $y$ in such a way that (1) and (2) are satisfied simultaneously. The method consists on *eliminating* one of the variables using both equation, multiplying them by the right constants. More precisely, if we multiply the first equation by 2 we obtain

and now we sum both equations (3) and (4) to get $11x=33$, which means that $x=3$. Now that we have $x$, we can find $y$ simply replacing any of the equations (1) or (2). We choose (1), so we get $9+2y=11$, which implies that $2y=2$, and then $y=1$. Summarizing

\[ x=3 \quad , \quad y=1 \]is the solution. $\Box$

**Problem 2.** Rationalize the denominator

**Solution.** We have the factor $\sqrt 3-\sqrt 2$ in the denominator, so we multiply both the numerator and denominator by
the conjugate $\sqrt 3+\sqrt 2$, to obtain:

This way, we have found an equivalent expression with no radicals at the denominator, i.e.

\[ \displaystyle \frac{\sqrt{2}}{\sqrt 3-\sqrt 2}=\sqrt 6-2 \]
but this last expression is *rationalized*. $\Box$