Write down the meaning of each of the given equations. See Example 1. y = tan 1

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Write down the meaning of each of the given equations. See Example 1.

y = tan−1 5x


Data from Example 1

(a) y = cos−1 x is read as “y is the angle whose cosine is x.” In this case, x = cos y.

(b) y = tan−1 2x is read as “y is the angle whose tangent is 2x.” In this case, 2x = tan y.

(c) y = csc−1 (1 − x) is read as “y is the angle whose cosecant is 1 − x.” In this case, 1 − x = csc y, or x = 1 − csc y.

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Basic Technical Mathematics

ISBN: 9780137529896

12th Edition

Authors: Allyn J. Washington, Richard Evans

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