You probably seen this concave mirror thing in optics b4, and they tell you to go remember all the object and image positions and if the image is enlarged or watever right. So, if you are lazy like me, here's Mr Ricardo's Room Theorem.
First, name all the sectors,
Section from P to F: Room 1
Section from F to C: Room 2
Section from C to Inf: Room 3
Section behind mirror: Room 4

So if you look at it, if the object is at room 1, the image is at room 4, if the object is at room 2, the image is at room 3 and so on. Thus, the theorem is simply
-->Object + Image = 5
-->If we look at the first case and second case, 4 > 1 & 3>2, thus image is bigger than object
And it works for convex too.
They should have seriously told us about this earlier, then I could be more lazy last year.

Anyway, there's some stupid mosquito flying ard in my room last night and it bit me like dunno how many times, got me so irritated that i couldn't sleep. Fortunately, it tried to fly up to me again while i was brushing my teeth, so now it's dead. Greed doesn't pay hehe......
Sianz ppl | 8:30:00 am