Let f(x)={(1-sin cube x divided by 3cos square x),if x< pi divided by 2

[Dhanalakshmi]

let f(x)={(1-sin³ x divided by 3cos² x),if x< π/2 and b(1-sinx)divided by(π -2x)² ,if x>π/2 and a ,if x=π/2} IF f(x) IS CONTINOUS AT X=π/2,FIND a AND b

[Dhanalakshmi]