Homework Answers
Answer
Here we consider a rook chess piece that is only allowed to move up by one square or to the right by one square. Now if we start it at the bottom left square of an 8 by 8 chessboard, then in order to take the rook from the bottom to the left to the top right square, we have to proceed the rook 7 steps forward and 7 steps rightward ( here the position of the rook is at the 1st left most and 1st down cornered most position which in the concept of cartesian we can say as (1,1) , not (0,0), thats why to reach at the position (8,8) , the rook has to move 7 forward steps and 7 rightward steps).
So the total number different ways to reach such position be 7x7=49.
Hence the answer.............
Thank you.............
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