Hasil dari 9!11!−10!​ adalah ....

Pertanyaan

Hasil dari begin mathsize 14px style fraction numerator 11 factorial minus 10 factorial over denominator 9 factorial end fraction end style adalah ....

E. Data

Master Teacher

Jawaban terverifikasi

Pembahasan

Ingat: begin mathsize 14px style n factorial equals n cross times left parenthesis n minus 1 right parenthesis cross times left parenthesis n minus 2 right parenthesis cross times... cross times 3 cross times 2 cross times 1 end style

Jadi hasil

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell fraction numerator 11 factorial minus 10 factorial over denominator 9 factorial end fraction end cell equals cell fraction numerator 11 factorial over denominator 9 factorial end fraction minus fraction numerator 10 factorial over denominator 9 factorial end fraction end cell row blank equals cell fraction numerator 11 cross times 10 cross times 9 factorial over denominator 9 factorial end fraction minus fraction numerator 10 cross times 9 factorial over denominator 9 factorial end fraction end cell row blank equals cell 11 cross times 10 minus 10 end cell row blank equals 100 end table end style

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