Answer:
-3x - 7 is the furthest it can be simplified
Answer: Although A and AT have the same eigenvalues, they may actually have different eigenvectors for that particular eigenvalue. Therefore A and AT have at least one eigenvector that aren't in common.
Step-by-step explanation:
These two attachment explains the provings and counterexamples briefly and simply
Answer:
45 Handshakes
Step-by-step explanation:
45 Handshakes have taken place all together
Using the general equation formula;
y-y1=m(x-x1)
y1=20 and x1=4
Since the two lines are perpendicular, they have the same gradients
But gradient for y=4x+5 is 4
Therefore m of the equation is 4
Substituting all this into the general formula;
y-20=4(x-4)
y-20=4x-16
y=4x-16+20
y=4x+4