) The kinetic energy of a pendulum is given by T = 1

2ml2θ2 and potential energy is given
by U = mgl(1 − cos θ). Obtain its Lagrangian. (3 M) The kinetic energy of a pendulum is given by T = 1
2ml2θ2 and potential energy is given
by U = mgl(1 − cos θ). Obtain its Lagrangian. (3 M