Hi Folks, Got a question regarding simmultanous equations. I am studying Electronics and have been looing at a certain type of response. The crtically damped response. vC = Aexp(mt) + Btexp(mt) where m is one value lets say -1. vC has intial value of 2. The problem is to obtain the values for A and B. The derivative of vC with respect time. dvC/dt = mAexp(mt) + Bexp(mt) + mBtexp(mt) (differentiated the second term using the product rule) assuming t = 0 Putting values in. 2 = Aemt + Btemt 0 = mAemt + Bemt + mBtemt 2 = A + 0 A must equal 2 0 = -A + B + 0 0 = -2 + B B must equal 2 Therefore A and B both equal 2. Is that correct the way I have done it! It doesnt look right!