(O) = 90 (10 (10 5

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 49E
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please explain and show all the step

 

Give a combinatorial proof of the following identity. Hint: Suppose you have 5 red pens, 1 green pen, and 4 blue pens.

(10
()) = ) )
10°
5.
Transcribed Image Text:(10 ()) = ) ) 10° 5.
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