# Tutorials

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## Long Division

There are two ways to do division with polynomials, which are long(polynomial) division and synthetic division. In these two sample problems, this would only be done through long division. Synthetic division is the shortcut, but it only works with linear factors. You have to find the solution for x, so it can be used in…

## Mitosis

Mitosis is the cell division that creates two identical daughter cells to the parent(clones).

## Causes of World War 1

Before World War 1, and after the 40-year peace in the aftermath of the Napoleonic Wars, there were a lot of tensions brewing in Europe. The great powers had competed to be the most superior and the most powerful nation in the world. In the area called the Balkans, which were in the southeastern part…

## FDR’s Court-Packing Plan

During FDR’s first term, the Supreme Court had ruled certain aspects of the New Deal to be unconstitutional like the Agricultural Adjustment Act of 1933 as well as 1935 and the National Industrial Recovery Act. After FDR’s landslide victory in the 1936 election, he proposed legislation to address the Supreme Court’s decision on the New…

## power rule

Differentiating negative power the power rule also allows us to differentiate expressions like 1/x2

## Trig Ratios

In trigonometry, it is important to know the trig ratios to help solve certain problems dealing with the matters of angles, equations, degrees, unit circle, etc. There are six trig ratios. Co-functions: sin=opp/hyp csc=1/(opp/hyp)=hyp/opp cos=adj/hyp sec=1/(adj/hyp)=hyp/adj tan=opp/adj cot=1/(opp/adj)=adj/hyp -Co-functions are trig ratios that are the inverses of SOH CAH TOA. -sin=sine -csc=cosecant -cos=cosine -sec=secant -tan=tangent…

## Imaginary Numbers

An imaginary number is a complex number that can be written as a real number multiplied by i, which is the imaginary unit.

## Progressive Era

Even though Theodore Roosevelt was the “trustbuster”, his two successors, William Howard Taft and Woodrow Wilson had dealt with the same issue of trusts and monopolies.

## Middle Ages-Causes and Effects of the Crusades

There are causes and effects of the events for to have an impact in history whether they are significant or insignificant.