2 -3 4 -2 2 4 8 -6 1 Let A = 1 B = and C = Find the matrices below. 2 0 0 1 1 9 4 (a) A - 2B = (b) -C = B - C = (c) 2A + 3B - 4C = 5.

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Q: (3) 2.3-= 3" – 1 i=1 k+1 Hint: 2-3-1 = 2-3i-1+2-3'k+1)-1 = 3* –1+2-3* = 3-3* –1 = 3*+1_1 i=1 i=1

A: ∑i=1n2.3i-1=3n-1for  n=1∑i=1n2.3i-1=2.30=2=31-1,    truefor n=2∑i=1n2.3i-1=2.30+2.31=2+6=8=32-1,…

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Statements and Logic

Logic is the analysis of general patterns of thoughts without regard to any specific sense of context.