1. Let 2-13 45 0 <-2 0-2 3 C=1 74 3 59 Show that 8 3 B=0 1 4-7 (a) A+ (B+C) = (A+B) + C (b) (AB)C=A(BC) (c) (a+b)C=aC+bC (d) a(B-C)-aB-aC 1 6=-7

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A: The slope between two points(x1, y1) and (x2, y2) is given by,m=y2-y1x2-x1

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A: Yellow represent is " alpha /any constent" And alpha/ constent is element of R.

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A: Given a) 6414 b) 8114  c) 253.423.813513.2513

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A: To prove: A⊆B∩C

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A: Our Aim is to find the slope of the line containing the points (7,-5) and (7,10).

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A: Given    8 3¯  15    120  +  2  10  120  +9  3   15 =⇒8  + 2+ 9 =19

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A: The Solution is given below

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A: The solution is given below

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