Could someone please assist me w/ two of the following circuit analysis problems on ideal diodes. I know the following steps are as follows: (1) Make a plausible assumption (Reverse bias or forward bias) (2) Proceed w/ analysis (3) Check if assumption from (1) is consistent The first problem is: For this problem, I'm not sure whether or not my approach to determine V_A is correct. Could someone please confirm this with me? The second problem is: For this problem, I assumed both diodes D1 & D2 are in forward biased. In determining I2, I had a nodal equation at B and got 0.67mA. Is this correct? Or since there is a voltage after D2, is this a reverse bias? Many thanks in advance to anyone who is able to help me out on these problem.