Roboguru

Tuliskan tujuh suku pertama barisan berikut: d.

Pertanyaan

Tuliskan tujuh suku pertama barisan berikut:

d. begin mathsize 14px style U subscript n equals fraction numerator left parenthesis negative 1 right parenthesis to the power of n over denominator n plus 1 end fraction end style

Pembahasan Soal:

begin mathsize 14px style U subscript n equals fraction numerator left parenthesis negative 1 right parenthesis to the power of n over denominator n plus 1 end fraction U subscript 1 equals fraction numerator left parenthesis negative 1 right parenthesis to the power of 1 over denominator 1 plus 1 end fraction equals negative 1 half U subscript 2 equals fraction numerator left parenthesis negative 1 right parenthesis squared over denominator 2 plus 1 end fraction equals 1 third U subscript 3 equals fraction numerator left parenthesis negative 1 right parenthesis cubed over denominator 3 plus 1 end fraction equals negative 1 fourth U subscript 4 equals fraction numerator left parenthesis negative 1 right parenthesis to the power of 4 over denominator 4 plus 1 end fraction equals 1 fifth U subscript 5 equals fraction numerator left parenthesis negative 1 right parenthesis to the power of 5 over denominator 5 plus 1 end fraction equals negative 1 over 6 U subscript 6 equals fraction numerator left parenthesis negative 1 right parenthesis to the power of 6 over denominator 6 plus 1 end fraction equals 1 over 7 U subscript 7 equals fraction numerator left parenthesis negative 1 right parenthesis to the power of 7 over denominator 7 plus 1 end fraction equals negative 1 over 8  Jadi comma space barisannya space adalah space minus 1 half comma space 1 third comma space minus 1 fourth comma space 1 fifth comma negative 1 over 6 comma space 1 over 7 comma space minus 1 over 8 comma... end style

 

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 02 Maret 2021

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