Make the given changes in the indicated examples of this section and then find the indicated values.

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Make the given changes in the indicated examples of this section and then find the indicated values.

In Example 4, change cosθ to sinθ and then find the angle.


Data from Example 4

If cosθ = 0.3527, which means that θ = cos−1 0.3527 (θ is the angle whose cosine is 0.3527), we can use a calculator to find θ. The display is shown in Fig. 4.22. Therefore, θ = 69.35° (rounded off).

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Basic Technical Mathematics

ISBN: 9780137529896

12th Edition

Authors: Allyn J. Washington, Richard Evans

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