7/30/2019 Mid Kartur x

1/3

LATIHAN ULANGAN TENGAH SEMESTER 1 TAHUN PELAJARAN 2011 2012

SMA KARANGTURI SEMARANG

L Chose the best answer!

1. The simple form of

( )44

35

2

2

y

yy

is ..2

2y 22y a. d.

24y2

2

1y

b.e.

2

2

1y

c.

2. The simple form of

( ) ( )( ) 2

3

2

1322

ab

abab

is ..

ab2 ba 48 a. d.42

4 ba4

8ab b. e.44ab c.

3. The value of

5

2

32

243

is ..

94

32

a.d.

4

9

4

9

b.e.

2

3

c.

4. The value of6

1

2

1

2

1

3

1

3

2

4

1

4.9.16

8.27.16

is ..

a. 3 d. 14

b. 4 e. 16

c. 8

5. The distance between the earth and the sun is81050,1 x km. If the speed of the light is

5103 x km/s, then the time needed by the light

to travel from the sun to the earth is . Second

a. 50 d. 20

b. 500 e. 2c. 200

6. The form3 32 32 xxx

is equal to ..6 56x 12 19576x a. d.

8 1054x 12 1972x b. e.

9 106x c.

7. If the4

1=+

xx

then the value of2

2 1

xx +

is ..

a. 16 d. 10

b. 14 e. 8c. 12

8. If

,2781.3

27.3.9 35=

n

then the value of n is ..

a. 0 d. 3

b. 1 e. 4

c. 2

9. The expression of 89

1

is aqual to ..

( )22321

223+ a.

d.

223

1

+ 232 + b.e.

223 c.

10. The form 487 is equal to

32 23 + a. d.

43

33+ b. e.32 c.

11. If 1logloglog2

222 =x , then the value ofx is

..

a. 2 d. 8

b. 4 e. 16

c. 6

12. The value of

4log18log8log 3327 +is ..a. 1 d. 4

b. 2 e. 5

7/30/2019 Mid Kartur x

2/3

LATIHAN ULANGAN TENGAH SEMESTER 1 TAHUN PELAJARAN 2011 2012

SMA KARANGTURI SEMARANG

c. 3

13. The value of5log39 is ..

a. 5 d. 27b. 15 e. 30

c. 25

14. If16log4log yx = , then the value of yxlog is

..

a. 1 d. 4

b. 2 e. 5

c. 3

15. Ifa=4log3 dan b=5log3 then 25log20 can be

written as ..

ab

ba +

ba

ba

+

a.d.

a

ba

2

ba

b

+

2

b.e.

b

ba

2

+

c.

16. If 3=x is solution of the quadratic equation02452 =+ xax . With Ra , then the other

sollution is ..3 5 a. d.5 8b. e.8 c.

17. The root of the quadratic equation

06135 2 = xx are ..

15 2 3 5

2

a.and

d. and

15 2 3 52

b. ande. and

3 5

2

c. and

18. If the roots of the quadratic equation

05622 = xx are 1x and 2x . The value of

2

2

2

1 xx + is ..a. 6 d. 12

b. 8 e. 14

c. 10

19. If 4=x is solution of the quadratic equation083

2 =+ bxx . Then the value of bb 2

is ..

a. 12 d. 100

b. 16 e. 110

c. 90

20. Given the quadratic equations :

(1) 07542 =+ xx

(2) 07332 = xx

(3)01555

2 =++ xx

(4) 03522 =+ xx

The quadratic equations whose roots imaginary

numbers are

a. (1) and (2) d. (2), (3) and (4)

b. (1) and (3) e. (2) and (4)

c. (1), (2) and (3)

21. The new quadratic equation whose roots are

325 + and 325 is ..

013102 =+ xx a.01310

2 = xx b.013102 =++ xx c.

02152 =+ xx d.

02152 = xx e.

22. If 01)12()2(2

=++ pxpxp has similar

roots, then the value ofp is ..

1 8

3

a.d.

1 3

8

b.e.

8

3

c.

23. If the roots of the quadratic equation

0153 2 =++ xx are and , the value of

22

11

+

is ..

7/30/2019 Mid Kartur x

3/3

LATIHAN ULANGAN TENGAH SEMESTER 1 TAHUN PELAJARAN 2011 2012

SMA KARANGTURI SEMARANG

a. 19 d. 24

b. 21 e. 25

c. 23

24. Persamaan kuadrat 0)12(22 = mxmx

mempunyai akar real dan berbeda jika m

memenuhi ..

4

1>m

4

1m

4

1=m

b.e.

4

1