Calculus: 1001 Practice Problems For Dummies (+ Free Online Practice). Patrick Jones
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      87. math

       88–92 Subtract the given polynomials.

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      91. math

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       93–97 Multiply the given polynomials.

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       98–102 Use polynomial long division to divide.

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      Trigonometry Review

      In addition to having a strong algebra background, you need a strong trigonometry skill set for calculus. You want to know the graphs of the trigonometric functions and to be able to evaluate trigonometric functions quickly. Many calculus problems require one or more trigonometric identities, so make sure you have more than a few of them memorized or at least can derive them quickly.

      In this chapter, you solve a variety of fundamental trigonometric problems that cover topics such as the following:

       Understanding the trigonometric functions in relation to right triangles

       Finding degree and radian measure

       Finding angles on the unit circle

       Proving identities

       Finding the amplitude, period, and phase shift of a periodic function

       Working with inverse trigonometric functions

       Solving trigonometric equations with and without using inverses

      Remember the following when working on the trigonometry review questions:

       Being able to evaluate the trigonometric functions at common angles is very important since they appear often in problems. Having them memorized will be extremely useful!

       Watch out when solving equations using inverse trigonometric functions. Calculators give only a single solution to the equation, but the equation may have many more (sometimes infinitely many solutions), depending on the given interval. Thinking about solutions on the unit circle is often a good way to visualize the other solutions.

       Although you may be most familiar with using degrees to measure angles, radians are used almost exclusively in calculus, so learn to love radian measure.

       Memorizing many trigonometric identities is a good idea because they appear often in calculus problems.

      103–104 Evaluate math, math, and mathfor the given right triangle. Remember to rationalize denominators that contain radicals.

      103.

Geometric representation of a right triangle.

      104.

Geometric representation of a right triangle.

       105–108 Evaluate the trig function. Remember to rationalize denominators that contain radicals.

      105. Given math, where math, find math.

      106. Given math, where math, find math.

      107. Given math, where СКАЧАТЬ