parallel ??
or perpendicular ??
There r two sets of parallel lines,their equations being xcosα+ysinα=p; p=1,2,3,......m and ycosα-xsinα=q;q=1,2,3,4....n; and n>m wher α is constant. what is the no of squares that can be formed with these lines
@sankara did u make the graph....if yes... then use permu and combi. to get the answer.............start with a 2 into 2 maze....then increase sloly...to the chess board ..
...see whats coming....the sequence u might get in the way...
see for 1 sq unit squares, this diff will be (1,1) and (1,-1)
----------2 -------------------------------------------- (2,2) and (2,-2)
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then for k sq unit squares, it is (k,k) and (k,-k).
the answer should be (m-1)(n-1)+(m-2)(n-2)+(m-3)(n-3)+......+(upto any one becomes 1)........@mkagenius ...read the question carefully before answering...ur ans was right only if m=n;