1.

Let f:A→B be a function, where A={x1,x2,x3...,x6} and B={y1,y2,y3...,y10} given by f(x)=y. Then the number of functions from A to B such that f(x1)<f(x2)<f(x3)=f(x4)<f(x5)<f(x6) is

Answer»

Let f:AB be a function, where A={x1,x2,x3...,x6} and B={y1,y2,y3...,y10} given by f(x)=y. Then the number of functions from A to B such that f(x1)<f(x2)<f(x3)=f(x4)<f(x5)<f(x6) is



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