2017年12月18日
See This 1-Year-Old Girl Snowboard on Her Own #ラナイ島
るるぶハワイ島・マウイ島・ホノルル-【電子書籍】 |
See This 1-Year-Old Girl Snowboard on Her Own
This little girl isn't even a year old, but she's already shredding the gnar. Cash Rowley and her parents Nick and Whitney of Boise, Idaho, hit the slopes two days before her first birthday. Nick added that ever since Cash was born, their goal was to have her on a snowboard by her first birthday. InsideEdition.com's Leigh Scheps (http://twitter.com/LeighTVReporter) has more.・・・続きはこちら⇒See This 1-Year-Old Girl Snowboard on Her Own
This little girl isn't even a year old, but she's already shredding the gnar. Cash Rowley and her parents Nick and Whitney of Boise, Idaho, hit the slopes two days before her first birthday. Nick added that ever since Cash was born, their goal was to have her on a snowboard by her first birthday. InsideEdition.com's Leigh Scheps (http://twitter.com/LeighTVReporter) has more.・・・続きはこちら⇒See This 1-Year-Old Girl Snowboard on Her Own
1-1+1-1+1-1+1-......の計算について
[教育・科学・学問>形式科学>数学]
f=1-1+1-1+1-...... と、置きます。 そして、変形して、 f=(1-1)+(1-1)+(1-1)+...... g=1-(1-1)-(1-1)-(1-1)-...... これより、 f=0、g=1。 もちろん、f=g だから、辺々加えて、 2f=1 ゆえに、 f=1-1+1-1+1-...... =1/2???...
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