Let a be the 2 × 2 matrix representing the rotation through an angle of α clockwise and let b be the 2 × 2 matrix representing the rotation through an angle of β counterclockwise, where 0 ≤ α, β ≤ 180◦ . for which values of α and β matrices a and b are similar?

What is the difference between regular convex and concave polygons

Lindsay used two points, (x, y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?