a)
ANSWER: 4 2 1 3 7 6 5
EXPLANATION
Go as deep as possible and back track till goal is reached
b)
ANSWER: 4 2 7 1 3 6 8
EXPLANATION
Go level by level and visit nodes till goal is reached
c)
Depth 0: 4
Depth 1: 4 2 7
Depth 2: 4 2 1 3 7 6 8
Order: 4 2 7 1 3 6 8
EXPLANATION: Do DFS level by level
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1. Search: In the state space shown, give the order in which the nodes are visited...
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