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as explained by my prof, you count the full squares(looking at number 2), then its 50 squares(give or take), now, the answer is 50(1/4)(1/4). i suppose i get that as that there are 4 squares from 0-1. now, for number 3, there are 32 full squares, but can someone explain to me why its 32(1)(10)? how does one look at that? i know its l*w but i dont see 1 and 10., is it because it starts at 1 and ends at 10? since it is a definite integral anyway, but if this is so, then why is number 1 (1/4)(1/4)?




