By Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen, Dave Sobecki

ISBN-10: 0470648058

ISBN-13: 9780470648056

The eleventh version of Analytic Trigonometry keeps to provide readers trigonometric techniques and purposes. virtually each proposal is illustrated through an instance via an identical challenge to inspire an energetic involvement within the studying procedure, and thought improvement proceeds from the concrete to the summary. wide bankruptcy assessment summaries, bankruptcy and cumulative evaluation routines with solutions keyed to the corresponding textual content sections, potent use of colour reviews and annotations, and favorite monitors of vital fabric to aid grasp the topic. Analytic Trigonometry, 11e comprises up-to-date functions from quite a number assorted fields.

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**Example text**

F Focal length (a) 4 ft Object P h u Camera lens A u F u Image on film 15 ft FЈ B hЈ C v PЈ 41. Geometry Find x and y in the ﬁgure. (b) Figure for 37 and 38 38. ) For a 50 mm lens it is said that if the object is more than 20 m from the lens, then the rays coming from the object are very close to being parallel, and v will be very close to f. (A) Use the lens equation given in part (C) of Problem 33 to complete the following table (to two decimal places) for a 50 mm lens. 0 42. 0 y x Find x and y in the ﬁgure.

U = 27° 13. u = 25° 14. u = 36° 15. u = 30° 16. u = 54° In Problems 37–40, if you are given the indicated measures in a right triangle, explain why you can or cannot solve the triangle. 37. The measures of two adjacent sides a and b 38. The measures of one side and one angle 39. The measures of two acute angles 40. The measure of the hypotenuse c In Problems 41–50, solve the right triangle (labeled as in the ﬁgure at the beginning of the exercises) given the information in each problem. 41. 0 mm In Problems 17–28, use a calculator to ﬁnd each trigonometric ratio to three signiﬁcant digits.

CЈ 17 AЈ 20Њ Measure (approx. ] BЈ FIGURE 3 [Note: The use of scale drawings for ﬁnding indirect measurements is included here only to demonstrate basic ideas. Scale drawings can introduce considerable error in a calculation. ] ■ Matched Problem 2 Suppose in Example 2 that AC = 550 ft and ∠A = 30°. 0 in. , ﬁnd BC, the length of the proposed mine shaft. ■ EXPLORE/DISCUSS 2 We want to measure the depth of a canyon from a point on its rim by using similar triangles and no scale drawings. * A vertical pole of height a is moved back from the canyon rim so that the line of sight from the top of the pole passes the rim at D to a point G at the bottom of the canyon.

### Analytic Trigonometry with Applications, 11th by Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen, Dave Sobecki

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