We begin by investigating whether the lengths are the same.Find the length of the vector, C, starting with the components given in Equations 3 and 4.Express your answer in terms of A, B, and θ.Equation 3: \evec{C}_x = A + B\cos(\theta) andEquation 4: \evec{C}_y = B\sin(\theta).C = ??????I somehow do not understand how to get the problem right on mastering engineering. I square each equation, add them, and use the pythagorean theorem.