Trigonometry Help

In this section you'll find study materials for trigonometry help. Use the links below to find the area of trigonometry you're looking for help with. Each study guide comes complete with an explanation, example problems, and practice problems with solutions to help you learn trigonometry.

Study Guides

showing 31 - 40 of 94
  • 31.

    Power of Ten Help

    Standard and Alternative Form Scientists and engineers like to express extreme numerical values using an exponential technique known as power-of-10 notation. This is usually what is meant when they talk about scientific notation. ...

    Source: McGraw-Hill Professional
  • 32.

    Rules for Use of Power of 10 Notation Help

    Rule of Use of 10 Notation In printed literature, power-of-10 notation is generally used only when the power of 10 is large or small. If the exponent is between –2 and 2 inclusive, numbers are written out in plain decimal form as ...

    Source: McGraw-Hill Professional
  • 33.

    Approximation, Error, and Precedence Help

    Truncation and Rounding In trigonometry, the numbers we work with are rarely exact values. We must almost always settle for an approximation. There are two ways of doing this: truncation (easy but not very accurate) and ...

    Source: McGraw-Hill Professional
  • 34.

    Significant Figures Help

    Introduction to Significant Figures When multiplication or division is done using power-of-10 notation, the number of significant figures (also called significant digits ) in the result cannot legitimately be greater than the number ...

    Source: McGraw-Hill Professional
  • 35.

    Scientific Notation Practice Test

    Review the following concepts if needed: Subscripts and Superscripts Help

    Source: McGraw-Hill Professional
  • 36.

    Terrestrial Distance Measurement Help

    Terrestrial Distance Measurement—Parallax Trigonometry is used to determine distances by measuring angles. In some cases, the angles are exceedingly small, requiring observational apparatus of high precision. In other cases, angle ...

    Source: McGraw-Hill Professional
  • 37.

    Interstellar Distance Measurement Help

    Interstellar Distance Measurement—The Astronomical Unit The distances to stars in our part of the Milky Way galaxy can be measured in a manner similar to the way surveyors measure terrestrial distances. The radius of the earth’s ...

    Source: McGraw-Hill Professional
  • 38.

    Direction Finding and Radiolocation Help

    Direction Finding and Radiolocation Trigonometry can be used to locate an object equipped with a wireless transmitter, based on the azimuth (compass bearing) of that object as observed from two or more widely separated points. Trigonometry can ...

    Source: McGraw-Hill Professional
  • 39.

    Surveying, Navigation, and Astronomy Practice Test

    Review the following concepts if needed: Terrestrial Distance Measurement Help

    Source: McGraw-Hill Professional
  • 40.

    Alternating Current Help

    Introduction to Alternating Current Trigonometry is important in electricity and electronics, particularly in the analysis of alternating current (AC) and waves. In electrical applications, direct ...

    Source: McGraw-Hill Professional
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