Use the given substitution to express the given radical expression as a trigonometric function without radicals. Assume 0 < 0

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 36E
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Use the given substitution to express the given radical expression as a trigonometric function without radicals. Assume 0 < 0 </2.
x²
√√81-x²
Let x = 9 cos 0 in
x²
√81-x²
(Simplify your answer. Type an expression using as the variable.)
Transcribed Image Text:Use the given substitution to express the given radical expression as a trigonometric function without radicals. Assume 0 < 0 </2. x² √√81-x² Let x = 9 cos 0 in x² √81-x² (Simplify your answer. Type an expression using as the variable.)
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