What is Dimensional Formula of Angular Acceleration?

Angular Acceleration is defined as change in angular velocity per unit time . Its formula is

Angular Acceleration = Angular velocity / Time

Dimensional Formula of Angular velocity = M⁰L⁰T^-1 Divide it by Time T¹

So Dimensional Formula of Angular Acceleration = M⁰L⁰T^-2
SI unit of Angular displacement is rad s^-2