# Excel Formula To Count Number Of Times A Word Appears Learn Trigonometry in 2 Hours

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## Learn Trigonometry in 2 Hours

Trigonometry is a branch of mathematics that deals with triangles and angles. Contrary to what most students think, the subject is not difficult to understand. For starters, passing trigonometry requires encouraging students to believe in themselves and have what it takes to excel. It is possible to learn the subject in 2 hours if you follow the steps below.

To excel in trigonometry, you need to sharpen your algebra and geometry skills. In algebra, you should be familiar with changing the subject of equations, solving simultaneous equations, and understanding linear equations. Geometry is also close to trigonometry and areas you should focus on include problems involving circles. Understand the different types of triangles and the different formulas used to solve problems involving triangles.

To learn trigonometry in 2 hours you need to understand right triangles. Compared to other triangles, right triangles are the easiest to understand. Buy to learn the basics of these angles; You will have a better understanding of the three ratios in trigonometry. A right triangle has three sides, hypotenuse, adjacent and opposite. The hypotenuse is the longest side of a triangle.

In addition to learning about angles, you need to understand three ratios. These are sine, cosine and tangent. Sine is calculated by dividing the opposite angle by the hypotenuse while cosine is calculated by dividing the adjacent angle by the hypotenuse. On the other hand, the tangent is calculated by bisecting the angle opposite the side. A similar way to arrive at the tangent is to divide the sine by the cosine.

Next, learn the basics of other non-right triangles. The ratios used in right triangles don’t play a big role here but they do come in handy. For non-right angle triangles, you need to understand two important rules; Cosine and Sine Law. Both of these rules are used to determine the properties of non-right angled triangles. Keep in mind that there are three other ratios that you need to understand. These are secant, cosecant and cotangent. These are the reciprocals of cosine, sine and tangent respectively.

When it comes to trigonometry, you need to learn how to solve trigonometric equations. These equations usually involve functions and are solved by transforming the equation and it involves a single ratio. For example, you can convert a multiple trigonometric function to include a single ratio by dividing the equation by a trigonometric term. For example, if the equation contains a cosine and a sine, divide it completely by the sine. You also need to understand various trigonometric identities.

Learning trigonometry is not as difficult a subject as many people think. The key to mastering this subject is to learn the basics and keep practicing until you master it. The above tips can help you master the subject in just two hours and then, enable you to learn trigonometry without difficulty.

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