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数学トレーニング(数ⅠA①)

Mathematics

3rd Grade

Used 63+ times

数学トレーニング(数ⅠA①)
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16 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

赤い食べ物はどれ?

イチゴ

レモン

メロン

バナナ

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

関数 y=x2+2x+3y=x^2+2x+3  の頂点の座標は?

(1,2)

(-1,2)

(1,-2)

(-1,-2)

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

kk を定数とする。2次方程式 x2−2kx+k2+k−3=0x^2-2kx+k^2+k-3=0  が

実数解をもつような kk  の値の範囲は??

k≤2k\le2  

k≤3k\le3  

k≥2k\ge2  

k≥3k\ge3  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2次方程式  x2−2x−3=0x^2-2x-3=0  の解は、 x=?x=?  

1,ー3

1,ー2

ー1、2

ー1,3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2次方程式  4x2−8x−3=04x^2-8x-3=0  の解は、 x=?x=?  

−2±72\frac{-2\pm\sqrt[]{7}}{2}  

2±72\frac{2\pm\sqrt[]{7}}{2}  

−4±264\frac{-4\pm\sqrt[]{26}}{4}  

4±264\frac{4\pm\sqrt[]{26}}{4}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

sin π3\frac{\pi}{3}  の値は?

12\frac{1}{2}  

32\frac{\sqrt[]{3}}{2}  

12\frac{1}{\sqrt[]{2}}  

1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

cos 56π\frac{5}{6}\pi  の値は?

−32-\frac{\sqrt[]{3}}{2}  

12\frac{1}{2}  

−12-\frac{1}{2}  

−13-\frac{1}{\sqrt[]{3}}  

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