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Recall that an automorphism of a group G is a group isomorphism from G to G. Denote the set of all automorphism of G by Aut(G)
a) Show that Aut(G) is also a group
b) Recall that for each g belongs to G, the map c: G--G defined by c(x)=gxg^(-1) is an element of Aut(G). Show that the map c: g---c is a homomorphism from G to Aut(G)
c) Show that the kernel of the map c is Z(G)
d) In general, the map c is not surjective. The image of c is called the group of inner automorphisms and denoted Int(G). Conclude that Int(G) = G/Z(G)
MAST20018 - Discrete Mathematics and Operations Research State an upper-bound and a lower-bound on the vertex-chromatic number of the graph, and give reasons for your answers - Find an optimal colouring of the graph.
2) Starting with 500 bacteria ,a colony grows with a rate proportionnal to its total . It has 800 bacteria after 3 hoursa) Determine the expression that gives the number of bacteria in function of time b) What is the number of bacteria after 4 hours?..
1) State the strategy of Hindustan Unilever in your own words. 2) At what different levels is strategy formulated in HUL? 3) Comment on the strategic decision-making at HUL.
Explain how regression and analysis can be used to test a Survey?
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Find how much rope is needed to wrap around Earth at the equator, if the radius of Earth is 4000 miles. (hint: use 3.14 for pi and the formula for circumference)
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