parallel to the lines 
and 
and passing through the point P.Values
[12] 1. (a) Find an equation of the plane parallel to the lines and and passing through the point P.
(b) Find the distance between the plane and the line 
.
Values
[12] 2. Find all values of k such that the system
has no solution. Is there any value of k for which there are infinitely many solutions?
[12] 3. Solve by Gauss-Jordan elimination
Values
[12] 4. Suppose that A is an invertible 
matrix such that 
, where I is the identity matrix. Show that 
.
[12] 5. (a) Find the inverse of the matrix 
.
(b) Use 
to solve 
.