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tentukan titik belok dari f(x)= X4+2x3-12x2+x+3. kemudian pada daerah mana grafik cekung atas dan cekung bawah !
mas stephen ada langkah - langkah yang harus diperhatikan
1. fungsi diturunkan
2. dicari nilai nolnya
3. ketemu x disubtsitusikan ke yatau f(x)
f(x)= X4+2x3-12x2+x+3
f1(x)= 4X3+6x2-24x+1
f1(x)=0
4X3+6x2-24x+1= 0
Bapak/Ibu guru, tolong jawab yaa :)
1. titik belok dari fungsi y=x(pangkat 3) + 6x(pangkat 2) +9x + 7 adalah ...
2.jika nilai maksimum fungsi y= x + akar(p-2x) adalah 4, maka p=...
3.grafik fungsi y=ax(pangkat 2) + bx - 1 memotong sumbu X di titik (1/2 , 0) dan (1,0). fungsi ini mempunyai nilai ekstrim ...
terima kasih
mbak nabila , akan saya coba jawab sbb
1. kita turunkan y1= 3x2 + 12x + 9 , syarat stasioner y1=0
3x2 + 12x + 9 = 0
x2 + 4x + 3 = 0
( x + 1 ) ( x + 3 ) = 0
x = - 1 atau x = - 3
untuk x = - 1 maka y = 3 , untuk x = - 3 maka y = 7 , jadi titik baliknya
(-1,3) dan ( -3, 7)
2.jika nilai maksimum fungsi y= x + akar(p-2x) adalah 4, maka p=...
y1= 1 + 1/2 (p -2x)1/2. -2
y1=0
0 = 1 - 1/ akar ( p - 2x )
x = (p - 1) / 2
4 = (p - 1) / 2 + akar ( p - 2 (p - 1) / 2)
4 = (p - 1) / 2 + akar ( p - 2 (p - 1) / 2)
p = 7
3. grafik fungsi y=ax(pangkat 2) + bx - 1 memotong sumbu X di titik (1/2 , 0) dan
(1,0). fungsi ini mempunyai nilai ekstrim ...
kita cari a, b dahulu dengan substitusi
memotong sumbu x di (1/2 , 0) artinya a + 2b - 4 = 0
memotong sumbu x di (1,0) , artinya a + b - 1 = 0
dieleminasi didapat a = -2 dan b = 3
Fungsinya y = -2x2 + 3x - 1 Nilai ekstremnya ( 3/4 ,1/8)
silahkan dicoba dan dicek
agar grafik fungsi kuadrat f(x) = ax2 + (a-3)x + 1 memotong sumbu X positif di dua titik yang berbeda, maka batas-batas nilai a adalah ...
1. f(x) = ax2 + (a-3)x + 1 memotong sumbu X positif di dua titik yang berbeda, maka
batas-batas nilai a adalah ... syarat memotong sumbu X di 2 titik berbeda D > 0
silahkan mas tio coba sendir
Pak dan ibu,saya mohon bantuanya untuk macam-macam jenis preposition serta referensi website yang dapat dikunjungi untuk mencari tentang hal preposition. trims
Arditya bisa mendapatkan macam-macam preposition di 'preposition in english grammar'.
Wirastuti S.Pd M.Acc 24 November 2012 0:0
tenses apa yang digunakan pada Explanation text???
Afis, Explanation text menggunakan bentuk present tense.
Wirastuti S.Pd M.Acc 24 November 2012 0:0
pak minta buatin teks deskripsi serta pertanyaannya 10, 5 pilihan ganda, 5 esay
Nazwa, Berikut ini contoh descriptive text beserta pertanyaanya:
Prague
Is there any city in Europe, or else, like Prague? There has been a city here for over a thousand years, and now 2.250.000 people live here. It is most famous for its Gothic and Baroque building styles. Old Town Square, with its wonderful clock, the Charles Bridge, and Prague Castle on the hill above the river are just a few of Prague’s famous attractions.
Getting around Prague is easy by tram or underground train but it’s also a pedestrian’s dream because much of the old quarter and many of the streets and lanes have little or no traffic. The medieval center is Prague castle and St Vitus Cathedral. An evening view of these illuminated landmarks is one of the most memorable sights in Europe. Wenceslas Square is in the heart of modern Prague.
Visiting Prague today, you immediately notice the lively atmosphere. The city can be crowded during the hot summer months, but it is delight to visit any time of the year, even in the snowy cold of winter. In fact, tourism makes the largest contribution to Prague’s economy. Classical concerts take place all through the year, though the biggest event is the Prague Spring International Music Festival in May and early June. Theatre also has a special place in the life of the city.
The suburbs are like many in Eastern Europe with tall sky crappers and some light industry, but you are very quickly in the sleepy villages and gentle hills of Bohemia. Many people say Prague reminds them of Vienna or Budapest. But in fact, Prague is unique. There’s nowhere quite like it.
1. The purpose of the text is …….
a. to inform people about Prague’s beauty
b. to tell people about the history of Prague
c. to present people about the events in Prague
d. to describe the city of Prague and its uniqueness
e. to persuade
2. An evening view of these illuminated landmarks ………..
The underlined word means ……..
a. full of colors
b. full of buildings
c. full of memories
d. full of illusion
e. full of lights
3. The text organization/generic structure for this text consists of ……..
a. general classification – description
b. identification – explanation
c. orientation – events – reorientation
d. identification – description
e. general classification – events
4. The text above belongs to ……..
a. Recount
b. Narrative
c. Explanation
d. Discussion
e. Description
5. The text tells us about ………
a. Europe
b. Gothic building
c. Charles Bridge
d. Prague Castle
e. Prague
bapa ibu guru mohon dijawab yah ,pertanyaannya
lim x→0 2x³/tan³€·½x2
terima kasih
bapa ibu guru mohon dijawab yah ,pertanyaannya
1. lim x→0 2x³/tan2x·½x = 2 . x . x. x / tanx. tan x. 1/2 x = 2/ (1/2) = 4
Tolong berikan contoh tentang interested news dan apakah news item bisa kita jadikan interested news??
Thanks before,
Indra, berikut ini saya beri contoh news item text. News item text bisa menjadi berita yang menarik (interesting). Mungkin yang dimaksud Indra interesting ya, bukan interested. Karena interested artinya tertarik.
BUILDER Phil Young is celebrating a very special anniversary today – it is exactly one year since he was operated on at St Bartholomew’s hospital and given a new heart.
Mr. Young, 47, of Tottenham, is now so full of energy that he is training to play in a charity football match to raise money for the hospital’s transplant programme. So far eleven people have been given new hearts.
Mr. Young wants to help others like himself. In 1990 he was seriously ill with heart disease. He couldn’t work, he couldn’t climb the stairs, and he had two young sons to look after.
Now the boys are helping to train their father for the ball match. “My boss is very pleased that I am so fit again,” said Mr. Young. “I have become a real father to them again. We don’t just play football – we go jogging and swimming and play snooker together. I hope more people will help by the hospital, as I was.
tlg buat kan sy kalimat aktif dan pasif dari :
1.present tense
2.past tense
3.present continous
4.past continous
5.present perfect
6.past perfect
7.future
masing'' 2 contoh kalimat aktif dan pasif... !!
terimaksaih sblum nya, dan smoga djwb lebih cpt,krn sangat d perlukan !! :D
Afrizal berikut saya beri contoh kalimat aktif dan pasif:
1. Present tense:
a. Active: My father alsways reads newspaper.
b. Pasive: Newspaper is always read by my father.
2. Past tense:
a. Active: Afrizal wrote a poem.
b. A poem was written by Afrizal.
3. Present continuous:
a. Active: Afrizal and I are learning English.
b. Pasive: English is being learnt by Afrizal and me.
4. past continuous:
a. Active: Rina was doing homework when I came.
b. Pasive: Homework was being done by Rina when I came.
5. Present perfect:
a. Active: Anto has written an article for 2 hours.
b. Pasive: An article has been written by anto for 2 hours.
6. Past perfect:
a. Active: Before Dono went to schoo, he had finished the task.
b. Pasive: Before Dono went to school, the task had been finished by him.
7. Future:
a. My sister will visit my grandmother .
b. pasive: My grandmother will be visited by my sister.
ass.... tolong tuliskan rumus-rumus matematika kelas XI program IPA tentang STATISTIKA, PELUNG, TRIGONOMETRI, DAN LINGKARAN terima kasih......ditunggu lewat e-mail ya... wass....
WWW. Untuk rumus -rumus sudah ada dibuku2 teks matematika banyak sekali, mas supyana, maaf ya saya tdak usah menulis lagi disini, cuma kalau mau membaca buku st nagoro ensiklopedi matematika ,nuwun
Drs. Jumadi 24 November 2012 0:0
