Q2) Where necessary linearise the following relationships about the normal condition (x=1.0). Write down the linearised equations using: i) absolute variables ii) perturbation variables. Sketch the linearised and non-linear relationships in each case: a) y = 0.5x + 7 b) y=4x3 c) y = 2e4x Transform the linearised perturbation equations and draw the signal flow diagram with x(t) as forcing variables