Just multiply the matrices
a = (1)(-5)+(-2)(7)
b = (1)(6)+(-2)(-8)
c = (3)(-5)+(3)(7)
d = (3)(6)+(3)(-8)
16. What is the value of a that would make the matrix equation true?:
( 1 -2) (-5 6) (a b)
( 3 4) (7 -8) = (c d)
2 answers
For the matrices I came up with the following:
a. -5 + -14 = -19
b. 6 + 16 = 22
c. -15 + 21 = 6
d 18 + -24 = -6
Is this right? What am I suppose to do afterwards?
a. -5 + -14 = -19
b. 6 + 16 = 22
c. -15 + 21 = 6
d 18 + -24 = -6
Is this right? What am I suppose to do afterwards?