In which pairs of matrices does AB=BA?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis