(b) When n=19 and r=4, (Simplify your answer.) n! r!(n-r)! (b) When n=19 and r=4, (Simplify...
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(b) When n=19 and r=4, (Simplify your answer.) n! r!(n-r)! (b) When n=19 and r=4, (Simplify your answer.) n! r!(n-r)!
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