17. Find the angle between two planes below. a. 2x- y+= =5 and 3x + y-z =1 b. 2x - 4y + 6z = 1 and 2x-y+z =7 c. x+2y +: = 6 and 3x + y + : =1 d. r•(i+2j+3k)=10 and 2x+ y-z =1.
17. Find the angle between two planes below. a. 2x- y+= =5 and 3x + y-z =1 b. 2x - 4y + 6z = 1 and 2x-y+z =7 c. x+2y +: = 6 and 3x + y + : =1 d. r•(i+2j+3k)=10 and 2x+ y-z =1.
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter5: Similar Triangles
Section5.5: Special Right Triangles
Problem 4E: For the 30-60-90 triangle shown, suppose that XY=2a. Find: a XZ b YZ
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