Mathematics
Senior High
Resolved

Math B

上の式から下の式への
変形の仕方が分かりません ( . .)"

✿. ベスアン必ずつけさせて頂きます🙇🏻‍♀️՞

(1-x)S=1+ (1-x)S: 3x1-x-¹)-(3-2)x" 1-x 1+2x-(3n+1)x" +(3n-2)x" +1 1-x
₱å₥

Answers

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