Answered: QUESTION 19 ONLY FILL IN THE NUMERICAL…

QUESTION 19 ONLY FILL IN THE NUMERICAL VALUE OF THE ANSWER, TO 1 DECIMAL PLACE. Find the angle, in degrees, between the 2 planes x+2y-z=2 and 2x-2y+z=1

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter8: Applications Of Trigonometry

Section: Chapter Questions

Problem 1RE

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Expert Solution

Step 1

Given:

The equations of the plane are

x + 2y - z = 2 and 2x - 2y + z = 1

To determine:

The value of the angle in degrees between x + 2y - z = 2 and 2x - 2y + z = 1

Formula used:

$C o s (α) = \frac{\vec{N_{1}} \cdot \vec{N_{2}}}{|\vec{N_{1}}| \cdot |\vec{N_{2}}|}$

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