2 To evaluate the integral (384 + 576 sin(t) + 216 sin (t)) dt, we recall the trigonometric identity,

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.2: Trigonometric Equations
Problem 104E
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2
To evaluate the integral
(384 + 576 sin(t) + 216 sin (t)) dt, we recall the trigonometric identity,
sin?(t)
1- cos(2t)
2
Using this identity to rewrite sin2(t), we calculate the mass of the wire.
2x
p(x, y) ds =
(384 + 576 sin(t) + 216 sin?(t)) dt
2x
-(1
492 + 576 sin(t) -
cos(2t)
dt
- [192 -
576 cos(t)
2t)
Transcribed Image Text:2 To evaluate the integral (384 + 576 sin(t) + 216 sin (t)) dt, we recall the trigonometric identity, sin?(t) 1- cos(2t) 2 Using this identity to rewrite sin2(t), we calculate the mass of the wire. 2x p(x, y) ds = (384 + 576 sin(t) + 216 sin?(t)) dt 2x -(1 492 + 576 sin(t) - cos(2t) dt - [192 - 576 cos(t) 2t)
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