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591 Part 1 Matematika

Authored by Taruna Eduka

Mathematics

Professional Development

Used 6+ times

591 Part 1 Matematika
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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Koordinat titik potong grafik y=x2+4x−12y=x^2+4x-12 dengan sumbu -X adalah (a, 0)\left(a,\ 0\right) dan (b, 0)\left(b,\ 0\right) . Nilai dari a2+b2+3ab=....a^2+b^2+3ab=....

0

2

4

6

8

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Himpunan penyelesaian dari persamaan   1x−1+1x−3=12\frac{1}{x-1}+\frac{1}{x-3}=\frac{1}{2} adalah ....

4±54\pm\sqrt[]{5}

4±254\pm2\sqrt[]{5}

8±58\pm\sqrt[]{5}

8±258\pm2\sqrt[]{5}

8±528\pm5\sqrt[]{2}

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Persamaan kuadrat yang akar-akarnya 3+26\frac{3+\sqrt[]{2}}{6} dan 3−26\frac{3-\sqrt[]{2}}{6} adalah ....

36x2+36x+7=036x^2+36x+7=0

36x2−36x+7=036x^2-36x+7=0

36x2−36x−1=036x^2-36x-1=0

36x2+36x−1=036x^2+36x-1=0

36x2+36x−2=036x^2+36x-2=0

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Akar-akar persamaan kuadrat x2+(p−1)x−18=0x^2+\left(p-1\right)x-18=0 adalah α\alpha  dan β\beta . Jika p≥0p\ge0  dan α+2β=0\alpha+2\beta=0  maka nilai p+1p+1  adalah ...

2

3

4

5

6

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Diketahui x1x_1  dan x2x_2  merupakan akar-akar x2+2ax+b2=0x^2+2ax+b^2=0 . Jika x12+x22=10x_1^2+x_2^2=10 , maka nilai dari   b2b^2 adalah  ....

−2a2+5-2a^2+5

2a2−52a^2-5

2a2+52a^2+5

4a2−104a^2-10

4a2+104a^2+10

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Persamaan kuadrat baru yang akar-akarnya tiga lebihnya dari akar-akar persamaan kuadrat x2+2x+6=0x^2+2x+6=0  adalah ....

x2−4x−9=0x^2-4x-9=0

x2−4x+9=0x^2-4x+9=0

x2−3x−9=0x^2-3x-9=0

x2+3x+6=0x^2+3x+6=0

x2+4x−6=0x^2+4x-6=0

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Jika x1x_1  dan x2x_2  merupakan akar-akar persamaan x2−x−3=0x^2-x-3=0  , maka persamaan kuadrat yang akar-akarnya (x12+x12)\left(x_1^2+x_1^2\right)  dan (2x1+2x2)\left(2x_1+2x_2\right)  adalah ....

x2−x+9=0x^2-x+9=0

x2+x+9=0x^2+x+9=0

x2−9x−14=0x^2-9x-14=0

x2−9x+14=0x^2-9x+14=0

x2+9x+14=0x^2+9x+14=0

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