Hi, could you please help me solve

Consider the problem of evaluating the value of the definite integral 30.1 = dx sin(x) - cos(2x) 29.9 Clearly state a suitable change of variables y(x) such that 1 = | f(y)dy for some function f(y). ii) Find the function f(y ) from part i). iii) Given four independent realisations of a U[0, 1] random variable, {0.804, 0.009, 0.500, 0.573) use the Monte Carlo method to estimate the value of the definite integral