Find the Inverse Matrix of

Q66: By looking at the solution of the

Q67: Use matrix multiplication to represent the system:

Q68: The spa staff determines that a client

Q69: (a)If A is the coefficient matrix of

Q70: If A = <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="If A

Q72: If A = <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="If A

Q73: Write a diagonal matrix of size 3

Q74: Find x,y,z,u,t,v such that <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="Find

Q75: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="If ,then

Q76: If A = <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6578/.jpg" alt="If A