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Catalogs Discussion Forums -> Trignometry -> Contest [swordfish #4]: Find equation of tangents' mid point -> Go to message
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D EQN OF P'Q' IS 2x2 -x1 +g=0
Catalogs Discussion Forums -> Algebra -> permutations and combinations -> Go to message
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3 replies   
selections with round table
Catalogs Discussion Forums -> Algebra -> Contest [swordfish #2]: Find ways to select people on circular table -> Go to message
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52 replies   
10C7
120
Catalogs Discussion Forums -> Algebra -> Contest [swordfish #3]: Find ways to distribute identical balls in identical boxes -> Go to message
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100 replies   
30c3-3
Catalogs Discussion Forums -> Algebra -> Contest [swordfish #3]: Find ways to distribute identical balls in identical boxes -> Go to message
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100 replies   
30p3
Catalogs Discussion Forums -> Algebra -> Contest [swordfish #2]: Find ways to select people on circular table -> Go to message
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52 replies   
there are 16 people and 7 have 2 b seleced
there r 9 people left and as the 7 people have not to sit consecutivel so choices
 
10p7 (as 10 gaps)
10!/3!
604800.
 
 
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