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1. (a) 1. (b) is parallel to , where is a scalar. 2. Using partial fractions, we find that Using method of differences (DIY), we have that 3. differs from by less than 1 Plot the graph of and in [...]

1. The two empty seats have to be considered as two identical objects, hence ways. 2. 3. or 4. 5. (a) 5. (b) ; 6. (i) or 6. (ii) 6. (iii) Case 1: 4 distinct letters. Case 2: Exactly 3 distinct [...]