ますただ
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13愛知県教員採用試験(数学:5番 微積)
単元:
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指導講師:
ますただ
問題文全文(内容文):
5⃣ $F(x)=\int_{\pi - x}^{\pi + x} t sint dt$
$(0 \leqq x \leqq 2\pi)$
F(x)の最小値を求めよ。
この動画を見る
5⃣ $F(x)=\int_{\pi - x}^{\pi + x} t sint dt$
$(0 \leqq x \leqq 2\pi)$
F(x)の最小値を求めよ。
10大阪府教員採用試験(数学:2番 微積)意外と沼にハマりがち
単元:
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指導講師:
ますただ
問題文全文(内容文):
2⃣ $f(x) = \frac{x}{1+x^2}$
f(α)=f(β) , 0 < α < β のとき$\int_α^β \frac{x}{1+x^2}dx= log_β$を示せ
この動画を見る
2⃣ $f(x) = \frac{x}{1+x^2}$
f(α)=f(β) , 0 < α < β のとき$\int_α^β \frac{x}{1+x^2}dx= log_β$を示せ
重積分⑦-4【極座標による変数変換】(高専数学 微積II,数検1級1次解析対応)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$∬_D(4-x^2-y^2)dxdy$
$D:x^2+(y-1)^2 \leqq 1 $ , $y \leqq x$
この動画を見る
$∬_D(4-x^2-y^2)dxdy$
$D:x^2+(y-1)^2 \leqq 1 $ , $y \leqq x$
重積分⑦-3【極座標による変数変換】(高専数学 微積II,数検1級1次解析対応)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$∬_D \frac{x}{y \sqrt{1+x^2+y^2}}dxdy$
$D: 0 \leqq x \leqq y $ , $\frac{1}{2} \leqq x^2+y^2 \leqq 1$
この動画を見る
$∬_D \frac{x}{y \sqrt{1+x^2+y^2}}dxdy$
$D: 0 \leqq x \leqq y $ , $\frac{1}{2} \leqq x^2+y^2 \leqq 1$
11神奈川県教員採用試験(数学:6番 指数)
単元:
#数Ⅱ#指数関数と対数関数#指数関数#数学(高校生)
指導講師:
ますただ
問題文全文(内容文):
6⃣$4^x+9^y=a^2$
$2^{x+1}+3^{2y}$の最大値を求めよ。(a>1)
この動画を見る
6⃣$4^x+9^y=a^2$
$2^{x+1}+3^{2y}$の最大値を求めよ。(a>1)
10神奈川県教員採用試験(数学:10番 複素数)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$\boxed{10}$ $z=cosθ+isinθ$
$0 < θ \leqq \pi$
$w=\frac{1-z^3}{1-z}$ , $|w|=1$
のときθの値を求めよ。
この動画を見る
$\boxed{10}$ $z=cosθ+isinθ$
$0 < θ \leqq \pi$
$w=\frac{1-z^3}{1-z}$ , $|w|=1$
のときθの値を求めよ。
07神奈川県教員採用試験(数学:7番 数列の極限)
単元:
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指導講師:
ますただ
問題文全文(内容文):
7⃣$a_1=\frac{1}{3}$ , $3^{n+1}a_{n+1}=3^na_n+1$
$\displaystyle \lim_{ n \to \infty } S_n$を求めよ
この動画を見る
7⃣$a_1=\frac{1}{3}$ , $3^{n+1}a_{n+1}=3^na_n+1$
$\displaystyle \lim_{ n \to \infty } S_n$を求めよ
重積分⑦-1【極座標による変数変換】(高専数学 微積II,数検1級1次解析対応)
単元:
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指導講師:
ますただ
問題文全文(内容文):
変数変換(極座標)
$x=rcosθ$ $y=rsinθ$
$∬_D f(x,y)dxdy=∬_D f(rcosθ,rsinθ)rdrdθ$
(1)$∬_D \sqrt{x^2+y^2}dxdy$
$D : 4 \leqq x^2+y^2 \leqq 9$
(2)$∬_D sin\sqrt{x^2+y^2}dxdy$
$D : x^2+y^2 \leqq x^2$
この動画を見る
変数変換(極座標)
$x=rcosθ$ $y=rsinθ$
$∬_D f(x,y)dxdy=∬_D f(rcosθ,rsinθ)rdrdθ$
(1)$∬_D \sqrt{x^2+y^2}dxdy$
$D : 4 \leqq x^2+y^2 \leqq 9$
(2)$∬_D sin\sqrt{x^2+y^2}dxdy$
$D : x^2+y^2 \leqq x^2$
09大阪府教員採用試験(数学:1番 微分の定義と微分方程式)
単元:
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指導講師:
ますただ
問題文全文(内容文):
1⃣f(x+y)=f(x)f(y)
f'(0)=C(≠0)
(1)f(0)
(2)${}^∀x \in \mathbb{R} , f(x) > 0$
(3)${}^∀x \in \mathbb{R} , f(x)$は微分可能
(4)f(x)をCを用いて表せ
この動画を見る
1⃣f(x+y)=f(x)f(y)
f'(0)=C(≠0)
(1)f(0)
(2)${}^∀x \in \mathbb{R} , f(x) > 0$
(3)${}^∀x \in \mathbb{R} , f(x)$は微分可能
(4)f(x)をCを用いて表せ
15愛知県教員採用試験(数学:1番 整数問題)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$x,y \in \mathbb{N}$ , $7x+4y=175$
(1)(x,y)の個数
(2)|x-y|の最大値
この動画を見る
$x,y \in \mathbb{N}$ , $7x+4y=175$
(1)(x,y)の個数
(2)|x-y|の最大値
重積分⑥-2【曲面・平面で囲まれた体積】(高専数学 微積II,数検1級1次解析対応)
単元:
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指導講師:
ますただ
問題文全文(内容文):
曲面$x^2+y^2=1$ $(z \geqq 0)$と平面z=2x、xy平面で囲まれた体積Vを求めよ。
この動画を見る
曲面$x^2+y^2=1$ $(z \geqq 0)$と平面z=2x、xy平面で囲まれた体積Vを求めよ。
10大阪府教員採用試験(数学:1番 数列の極限値)
単元:
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指導講師:
ますただ
問題文全文(内容文):
1⃣$-\frac{3}{2} < a_1 < 3$ , $a_{n+1}=\sqrt{2a_n+3}$
(1)$a_1 < a_2$
(2)$2 \leqq n, 0 < a_n < 3$
(3)$1 \leqq n, 0 < 3-a_n \leqq (\frac{2}{3})^{n-1}(3-a_1)$
(4)$\displaystyle \lim_{ n \to \infty } a_n$
この動画を見る
1⃣$-\frac{3}{2} < a_1 < 3$ , $a_{n+1}=\sqrt{2a_n+3}$
(1)$a_1 < a_2$
(2)$2 \leqq n, 0 < a_n < 3$
(3)$1 \leqq n, 0 < 3-a_n \leqq (\frac{2}{3})^{n-1}(3-a_1)$
(4)$\displaystyle \lim_{ n \to \infty } a_n$
重積分⑥-1【曲面・平面で囲まれた体積】(高専数学 微積II,数検1級1次解析対応)
単元:
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指導講師:
ますただ
問題文全文(内容文):
曲面$Z=4-x^2$と平面x+y=2,3つの座標平面で囲まれる立体の体積Vを求めよ。
この動画を見る
曲面$Z=4-x^2$と平面x+y=2,3つの座標平面で囲まれる立体の体積Vを求めよ。
10京都府教員採用試験(数学:2番 極限値)
単元:
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指導講師:
ますただ
問題文全文(内容文):
2⃣$\displaystyle \lim_{ x \to \infty } \frac{x}{e^x}=0$を
$f(x)=\frac{x^3}{e^x}$を利用して示せ。
この動画を見る
2⃣$\displaystyle \lim_{ x \to \infty } \frac{x}{e^x}=0$を
$f(x)=\frac{x^3}{e^x}$を利用して示せ。
重積分⑤【積分順序の変更(応用)】(高専数学 微積II,数検1級1次対応)
単元:
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指導講師:
ますただ
問題文全文(内容文):
(1)$\int_0^1 \int_y^1 sinx^2dxdy$
(2)$\int_0^{\sqrt3} \int_1^{\sqrt{4-x^2}} \frac{x}{\sqrt{x^2+y^2}} dydx$
この動画を見る
(1)$\int_0^1 \int_y^1 sinx^2dxdy$
(2)$\int_0^{\sqrt3} \int_1^{\sqrt{4-x^2}} \frac{x}{\sqrt{x^2+y^2}} dydx$
17愛知県教員採用試験(数学:10-(2) x軸回転体)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$\boxed{10}$(2)
図形$C: x^2+(y-3)^2 \leqq 4$
をx軸を中心にした回転体の体積Vを求めよ。
この動画を見る
$\boxed{10}$(2)
図形$C: x^2+(y-3)^2 \leqq 4$
をx軸を中心にした回転体の体積Vを求めよ。
重積分④【積分順序の変更】(高専数学 微積II,数学検定1級解析)
単元:
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指導講師:
ますただ
問題文全文(内容文):
積分順序の変更
(1)$\int_1^2 \int_0^{5-\frac{5}{2}y} f(x,y) dxdy$
(2)$\int_0^2 \int_0^{\frac{1}{2} \sqrt{4-x^2}} f(x,y) dxdy$
(3)$\int_1^e \int_0^{logx} f(x,y) dxdy$
この動画を見る
積分順序の変更
(1)$\int_1^2 \int_0^{5-\frac{5}{2}y} f(x,y) dxdy$
(2)$\int_0^2 \int_0^{\frac{1}{2} \sqrt{4-x^2}} f(x,y) dxdy$
(3)$\int_1^e \int_0^{logx} f(x,y) dxdy$
10東京都教員採用試験(数学:1-(1) 解と係数の関係)
単元:
#数Ⅱ#複素数と方程式#解と判別式・解と係数の関係#数学(高校生)
指導講師:
ますただ
問題文全文(内容文):
1⃣$2x^2-3x+2=0$の2つの解をα、βとする。
$α+\frac{1}{β}$,$β+\frac{1}{α}$を解にもつ$x^2$の係数が1となる2次方程式を求めよ。
この動画を見る
1⃣$2x^2-3x+2=0$の2つの解をα、βとする。
$α+\frac{1}{β}$,$β+\frac{1}{α}$を解にもつ$x^2$の係数が1となる2次方程式を求めよ。
重積分②(高専数学 微積II,数学検定1級解析)
単元:
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指導講師:
ますただ
問題文全文(内容文):
重積分(累次積分)
ex1
$∬_0 \frac{y}{x}dx dy$
$D : 1 \leqq x \leqq 3$ , $x \leqq y \leqq 2x$
この動画を見る
重積分(累次積分)
ex1
$∬_0 \frac{y}{x}dx dy$
$D : 1 \leqq x \leqq 3$ , $x \leqq y \leqq 2x$
重積分①(高専数学 微積II,数学検定1級解析)
単元:
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指導講師:
ますただ
問題文全文(内容文):
重積分(累次積分)
ex1 $∬_0 xy^2+y dx dy$
$ D : 0 \leqq x \leqq 1$ , $1 \leqq y \leqq 3$
この動画を見る
重積分(累次積分)
ex1 $∬_0 xy^2+y dx dy$
$ D : 0 \leqq x \leqq 1$ , $1 \leqq y \leqq 3$
08東京都教員採用試験(数学:1-(1) 相加平均・相乗平均)
単元:
#数Ⅱ#式と証明#恒等式・等式・不等式の証明#数学(高校生)
指導講師:
ますただ
問題文全文(内容文):
1⃣(1) x,y,zは正の数
x+2y+4z=2のとき
xyzの最大値を求めよ。
この動画を見る
1⃣(1) x,y,zは正の数
x+2y+4z=2のとき
xyzの最大値を求めよ。
14奈良県教員採用試験(数学:2-(6) y軸回転体・バームクーヘン積分 )
単元:
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指導講師:
ますただ
問題文全文(内容文):
2⃣-(6)
$y=-x^2+4$とx軸で囲まれた部分をy軸を中心とした回転体の体積Vを求めよ。
この動画を見る
2⃣-(6)
$y=-x^2+4$とx軸で囲まれた部分をy軸を中心とした回転体の体積Vを求めよ。
16愛知県教員採用試験(数学:5番 対数,相加平均・相乗平均)
単元:
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指導講師:
ますただ
問題文全文(内容文):
5⃣$a=log_3x$ , $b=log_4y$
a+2b=3のときx+yの最小値を求めよ。
この動画を見る
5⃣$a=log_3x$ , $b=log_4y$
a+2b=3のときx+yの最小値を求めよ。
11神奈川県教員採用試験(数学:11番 重積分)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$\boxed{11}$ $D=\{ (x,y) |x \geqq 0 , y \geqq 0, x+y \leqq 1 \}$
$∬_Dx^2+y^2 dx dy$を求めよ。
この動画を見る
$\boxed{11}$ $D=\{ (x,y) |x \geqq 0 , y \geqq 0, x+y \leqq 1 \}$
$∬_Dx^2+y^2 dx dy$を求めよ。
15京都府教員採用試験(数学:3番 微分)
単元:
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指導講師:
ますただ
問題文全文(内容文):
3⃣ A(1,a)から曲線$C:y=x^3+3x^2+x$に異なる接線が3本引けるようにaの範囲を定めよ
この動画を見る
3⃣ A(1,a)から曲線$C:y=x^3+3x^2+x$に異なる接線が3本引けるようにaの範囲を定めよ
18奈良県教員採用試験(数学:1番 ベクトル)
単元:
#平面上のベクトル#平面上のベクトルと内積#ベクトルと平面図形、ベクトル方程式#数学(高校生)#数C
指導講師:
ますただ
問題文全文(内容文):
1⃣一直線上にないO、A、B
$\overrightarrow{ OD } = 3\overrightarrow{ OA }$ , $\overrightarrow{ OE } = 2\overrightarrow{ OB }$
BDとAEの交点をC
(1)$\overrightarrow{ OC } $を$\overrightarrow{ OA } $と$\overrightarrow{ OB } $で表せ
(2)OCとABの交点をF
AF:FBを求めよ。
(3)$|\overrightarrow{ OA } |=4 $ , $|\overrightarrow{ OB }|= 5$ , $|\overrightarrow{ OC }|= 6$のときDEの長さを求めよ。
この動画を見る
1⃣一直線上にないO、A、B
$\overrightarrow{ OD } = 3\overrightarrow{ OA }$ , $\overrightarrow{ OE } = 2\overrightarrow{ OB }$
BDとAEの交点をC
(1)$\overrightarrow{ OC } $を$\overrightarrow{ OA } $と$\overrightarrow{ OB } $で表せ
(2)OCとABの交点をF
AF:FBを求めよ。
(3)$|\overrightarrow{ OA } |=4 $ , $|\overrightarrow{ OB }|= 5$ , $|\overrightarrow{ OC }|= 6$のときDEの長さを求めよ。
15神奈川県教員採用試験(数学:10番 定積分)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$\boxed{10}$ $\int_0^2 x^3 \sqrt{4-x^2} dx$
この動画を見る
$\boxed{10}$ $\int_0^2 x^3 \sqrt{4-x^2} dx$
13神奈川県教員採用試験(数学:9番 数列の極限値)
単元:
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指導講師:
ますただ
問題文全文(内容文):
9⃣$a_1=1,a_2=2,(a_{n+2})^5 =(a_{n+1})^4・a_n$
$\displaystyle \lim_{ n \to \infty } a_n$を求めよ。
この動画を見る
9⃣$a_1=1,a_2=2,(a_{n+2})^5 =(a_{n+1})^4・a_n$
$\displaystyle \lim_{ n \to \infty } a_n$を求めよ。
13神奈川県教員採用試験(数学:11番 曲線の長さ)
単元:
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指導講師:
ますただ
問題文全文(内容文):
$\boxed{11}$曲線$6y^2=x(2-x)^2 $ $(0 \leqq x \leqq 2)$
の長さlを求めよ。
この動画を見る
$\boxed{11}$曲線$6y^2=x(2-x)^2 $ $(0 \leqq x \leqq 2)$
の長さlを求めよ。
13神奈川県教員採用試験(数学:8番 行列)
単元:
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指導講師:
ますただ
問題文全文(内容文):
8⃣ $A=\begin{pmatrix}
-1 & -3 \\
1 & 2
\end{pmatrix}$
$S=A+A^2+\cdots+A^{99}$を求めよ。
この動画を見る
8⃣ $A=\begin{pmatrix}
-1 & -3 \\
1 & 2
\end{pmatrix}$
$S=A+A^2+\cdots+A^{99}$を求めよ。