I'm having more trouble then I should with a BJT question. Here is the question:
Normally I wouldn't know beta and would "assume beta large, thus IB = 0". I believe it is correct to assume the transistor is operating in the active region. Unfortunately I don't know either VE or VC so I'm unsure on how to proceed.
You're correct, in this case $$I_B \neq 0$$ $$I_C = I_B +I_E$$ Instead, you're going to want to use a few DC relations for an assumed active BJT. I'm also assuming that you're given a value for Vt. You're going to want to make a KVL loop with IE and IB and Vt. It should look like something like $$9V = I_E R_E + V_t + I_B R_B$$ with the added knowledge of $$I_B = \frac{I_E}{\beta +1}$$ is enough to solve for IE. Use $$I_C =\alpha I_E$$ to get the final current value. All thats left is to find the voltages using V=IR.
For the second part, of the question you'll have some algebra, but nothing overly complicated.
