In the differential equation (1 + 3x sin y)dx - x2 cos ydy = 0 , we let the substitution w = ________ . The letter w is for the first substitution.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.1: Verifying Trigonometric Identities
Problem 45E
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In the differential equation (1 + 3x sin y)dx - x2 cos ydy = 0 , we let the substitution w = ________ . The letter w is for the first substitution.

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