Given the matrices #A=[(5,7),(-1,6), (3,-9)], B=[(8,3), (5,1), (4,4)], C=[(0,4),(-2,5), (7,-1)], D[(6,2), (9,0), (-3,0)]#, how do you find 4C?
2 Answers
Aug 4, 2017
Explanation:
To find
#color(red)(4) [(0,4), (-2,5), (7, -1)]# =
# [(color(red)4 * 0, color(red)4 * 4), (color(red)4 * -2,color(red)4 * 5), (color(red)4 * 7, color(red)4 * -1)]# =
#[(0, 16), (-8, 20), (28, -4)]#
Aug 4, 2017
Explanation:
#rArr4C=color(red)(4)((0,4),(-2,5),(7,-1))#
#color(white)(rArr4C)=((color(red)(4)xx0,color(red)(4)xx4),(color(red)(4)xx-2,color(red)(4)xx5),(color(red)(4)xx7,color(red)(4)xx-1))#
#color(white)(rArr4C)=((0,16),(-8,20),(28,-4))#