SOLUTION: Find the inverse of [3 1][-4 1], if it exists. A. does not exist B. 1/7[1 3][4 -1] C. 1/7[1 -1][4 3] D. 1/7[-3 -4][1 -1] Thank you so much!!! God Bless and Happy Holidays

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons  -> Linear Equations Lesson -> SOLUTION: Find the inverse of [3 1][-4 1], if it exists. A. does not exist B. 1/7[1 3][4 -1] C. 1/7[1 -1][4 3] D. 1/7[-3 -4][1 -1] Thank you so much!!! God Bless and Happy Holidays      Log On


   

Question 388478: Find the inverse of [3 1][-4 1], if it exists.
A. does not exist
B. 1/7[1 3][4 -1]
C. 1/7[1 -1][4 3]
D. 1/7[-3 -4][1 -1]
Thank you so much!!!
God Bless and Happy Holidays!!!!
Answer by Jk22(389) About Me  (Show Source):
You can put this solution on YOUR website!
C.

(the inverse of [a b][c d] is [d -b][-c a]/(ad-bc) )