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英語 高校生

(5)についてeat the foodsではダメですか?

erdeen me we w break ma 東京医科歯科大 One reason may be breakfast's nutritional value-partly because cereal is Tarified with vitamins. In one study on the breakfast babits of 1.600 young people Julete, vitamin C, iron and calcium, was better in those who had breakfast in the U, researchers found that the fire and micronutrient intale, including of regularly. There have been sämiäer finelings in Australia, Brazil, Canada and the Breakfast is also associated with improved brain function, including concentration and language. A review of 54 studies found that eating breakfast can improve memory, though the effects on other brain functions were inconclusive. However, one of the review's researchers, Mary Beth Spitznagel says there is "reasonable" evidence breakfast does improve concentration-there just needs to be more research. "Looking at studies that tested concentration, the number of studies showing a benefit was exactly the same as the number that found no benefit," she says. "And no studies found that eating breakfast was bad for concentration." What's most important, some argue, is what we eat for breakfast. High-protein breakfasts have been found particularly effective in reducing food fravings and consumption later in the day, according to research by the Australian Commonwealth Scientific and Industrial Research Organisation. While cereal remains a firm favourite among breakfast consumers in the UK and US, a recent Which? investigation into the sugar content of 'adult' breakfast cereals found that some cereals contain more than three quarters of the recommended daily amount of free sugars in each portion, and sugar was the second or third highest ingredient in seven out of 10 flaked cereals. 5)PV But some research suggests if we're going to eat sugary foods, it's best to do it early. One study found that changing levels of the appetite hormone leptin in the body throughout the day coincide with having our lowest threshold for sweet food in the morning, while scientists from Tel Aviv University have found that hunger is best regulated in the morning. They recruited 200 obese adults to take part in a 16-week-long diet, where half added dessert to their breakfast, and half didn't. Those who added dessert lost an average of 40 lbs (18 kg) more-however, the study was unable to show the long-term effects.

未解決 回答数: 1
数学 高校生

数3積分の問題なのですがI1の求め方がわからないです、教えて頂けるとありがたいです。

[合併 u'v-uv' 2² 最大。 1 2 B)₁ y 広島市大〕 (540) 200, 213 ex 4 27 -eat) 定積分 < (S) HU f(x) f(x)=15x²+10x+1+- HINT (3) 自然数nに対してbm= CON a₁=10, an=an-1+ Sn_₁f(x) dx (n=2, 3, 4, .....) n-1 (1) 定積分 (12/23 +10gx) dx を求めよ。 an n+1 1 x よって したがって, (1) から +log x とし、数列{an} を次のように定める。 1 ただし、必要ならばlim-10gn=0を用いてよい。 n-00 n ...... (2) 一般項an を求めよ。 とおくとき, 極限 lim(√6-√bn+1) を求めよ。 In="f(x)dx (n=1.2.3.....….) とおく。 S" ( = = =+ +logx)dx=[logx+xlogx-x =(n+1)logn-n+1 75 (2) L="f(x)dx (n=1,2,3,.……) とおくと cn-1 1₁ = f(x) dx +S"_f(x) dx 1 n-1 an= =S₁ (15x² +10x+1+¹+ n =(n+1)logn+5n³+5n² 12400 < (3) √on-√b₂+1 1 =In-1+S"_f(x) dx (n=2. 3. 4.) よって、与えられた関係式から すなわち したがって, n=2,3, an-In-an-1-In-1 (n=2, 3, ......) に対して x200+1 xe nghe X.200 (56000 an-In=an-1-In-1=······=a₁--10-0=10 200 an=In+10 これはn=1のときも成り立つ。 (x200+xnie+1)(xnie-x205) (x00+ 1)(x nie+I) +logxdx+10 (200+xa+ 数学ⅡI- -437 +x)aie S +1) =r+5x+a+(n+1)logn-n+1+10 =(5n³+5n²+n)-11+(n+1)logn-n+11 2x20 〔愛媛〕 本冊 例題 88,209 (-1) ₁² + [1(x-1) ale- <S_₁5(x) dx = In-In-1 n-1 bn-bn+1 [1] √b₂ + √√b₂+1 an=an-1+In-In-1[+(xnia+1)gol=" ←Slog x dx =xlogx-x+C (n-1 S²-S² + S n-1 ←an-1-In-1-an-2-In-2 ← In=S₁ f(x) dx ←S (+logx) dx t (1) < の結果を利用。 ←5n³+5n²=5n²(n+1) 2²-0²-² 総合 を起こす #Zn +2H

解決済み 回答数: 2