How do you simplify #5[(1/2,0,1),(2,1/3,-1)]+4[(-2,3/4,1),(1/6,0,5/8)]#?

1 Answer
Jim G.
Mar 9, 2017

#[(-11/2,3,9),(32/3,5/3,-5/2)]#

Explanation:

Each of the elements in the matrix is multiplied by the scalar.

#rArr[(5/2,0,5),(10,5/3,-5)]+[(-8,3,4),(2/3,0 ,5/2)]#

Now add corresponding elements in each matrix.

#rArr[(-11/2,3,9),(32/3,5/3,-5/2)]larrcolor(red)"is the sum"#

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