Diodes questions, assumptions required, urgent help
this is actually an example in my book (sedra and smith, 5th ed) which i fail to understand completely!!!
the question is :
Assuming the diodes to be ideal find V and I in the circuits.
I obviously went through the example but it totally escapes me. They've first assumed that D1 is conducting and proceeded from there. i'm lost.
i tried to assume that d1 is not conducting and proceeded from there but i didnt know how to check my answer at all.
please help. i'm soooooooooooooo lost and its like a bug in my system. i think i understand basic diodes but this assumption stuff is really confusing.
thankyou