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Pertanyaan
Sampaikan pertanyaan menganai kesulitan belajarmu kepada tim narasumber yang kompeten. Kamu harus login JSS terlebih dahulu untuk mengajukan pertanyaan, klik di sini untuk login JSS
Selamat malam...
Kak tolong dong jelaskan secara detil tentang Grafik Fungsi Trigonometri Sinus,Cosinus dan Tangen, Soalnya aku belum paham mengenai bab ini... Jelaskan bagian-bagiannya ya, kalo bisa dengan gambarnya
Ardian, ...materi kamu tanyakan sudah kami siapkan ttp ada gangguan dalam pengiriman filenya. Coba cari di yuotube atau kalau mau : ada materi yang kamu tanyakan tapi dalam bahasa inggris> Kalau Ardian mau: kunjungi blog saya : idalydiati@wordpress.com pada bagian tautan ambil materi in english I atau II. Selamat belajar!
Dra. Ida Lydiati, MM 27 Februari 2010 0:0
Bantuin ngerjakan soal ini...
Buktikan bahwa:
1. cos a per 1 + sin a = 1 - sin a per cos a
2. tan a = 1 - 2 cos" a per sin a cos a + cot a
3. cos"a (1-tan"a) + sin"a = tan"a
4. sin"a - sin"b per cos"a cos"b = tan"a - tan"b
5. cos"a - cos"a sin"a per sin"a - cos"a sin"a = cot"a
6. (1+ cos a) csc a + 1 per csc a (1+cosa) = 2 csc a
Makasihya...
Dani,...kami sudah menjawab pertanyaan yang hampir sama dengan pertanyaanmu yaitu dari Riska. Coba download jawaban tersebut. Semoga bisa membantu Dani dalam belajar !
Dra. Ida Lydiati, MM 27 Februari 2010 0:0
Soal Fisika yg ingin kami tanyakan :
1. Transmisi listrik jarak jauhmenggunakan transformator yg dapat menaikkan tegangan dari 10000 volt menjadi 15000 volt. Jika daya listrik yg dialirkan 7,5 juta watt dan hambatan kawat 0,2 oh. Tentukan
a. Kuat arus sekunder
b. Perbandingan kumparan primer dan sekunder
c. Efisiensi dari transformator tsb
2. Sebuah magnet memikiki kuat medan magnet 5 tesla. Magnet tsb menembus bidang seluas 500 cm2 secara tegak lurus. Berapakah fluks magnet yg menembus bidang tsb.
3. Sebuah trafo pada radio dirumah, menurunkan tegangan 120 volt AC menjadi 9 volt AC. Kumparan sekunder memiliki 30 lilitan dan radio menggunakan arus sebesar 400 mA, Tentukan :
a. Jumlah lilitan primer
b. Kuat arus pada kumparan primer
c. daya yg ditransmisikan
Terima kasih banyak atas bantuannya
Thalia
silahkan download jawaban berikut! lampiran
Winarso, S.Pd 27 Februari 2010 0:0
1. Sebuah transformator memiliki kumparan primer 450 lilitan dan kumparan sekunder 600 lilitan. Kumparan primer dihubungkan dgn tegangan 300 volt. Tegangan pada kumparan sekundernya adlh.. 2. Daya pada kumparan primer dari sebuah trafo step up adalah 400 watt. Jika daya pada kumparan sekundernya 200 watt, efisiensi trafo tsb adalah.. 3. Diketahui kalor jenis air 4200 J/kg°C, maka untuk menaikkan suhu 4 kg air dari 20°C, diperlukan kalor sebanyak.. 4. Perbandingan periode getaran benda A dan B adalah 3:2. Bila benda A bergetar 50getaran/detik. Maka frekuensi benda B adalah.. 5. Termometer Fahreinheit menunjukkan angka yg sama dgn 2x angka yg ditunjukkan termometer celcius pd suhu.. 6. Perubahan wujud zat yg melepaskan kalor terjadi pada waktu..
Silahkan ambil jawaban pada file unduhan! lampiran
Winarso, S.Pd 27 Februari 2010 0:0
mnt tolong dicarikan contoh soal matematika dan pembahasannya
Selamat bergabung di kbs online.... mungkin akan lebih pas bila disebut saja masalahnya sehingga kami bisa lebih bisa membantumu. Coba buka jawaban-jawaban dari kami pada kbs online bahkan bisa di down load juga, mungkin ada yang pas dengan yang dimaksud. Selamat belajar!
Dra. Ida Lydiati, MM 25 Februari 2010 0:0
mau minta tolong dicarikan soal UN 2009 dan pembahasannya
Lia,.... coba cari di internet. Banyak kok materi tentang soal dan pembahasan soal un. Cari dengan kata kunci "pembahasan soal un matematika ipa 2009 " Selamat belajar.
Dra. Ida Lydiati, MM 25 Februari 2010 0:0
Terima kasih atas jawabannya. Teks ttg Japan ini kalo yg geograpical condition itu spt apa?
Japan is a land of striking scenic beauty. First time visitors are impressed by its greenness and its mountains, which cover nearly three-quarters of the country. Gentle plains and intermountain basins account for only about 25% of Japanese territory. Here, the flat lands are geologically young and the soil run off from the surrounding mountains is shallow.
The rugged peaks, snow-fed lakes, turbulent rivers, rocky gorges and waterfalls and dense forests are breathtaking, but they put severe limits on livable land. With seventy-five percent of the nation unsuitable for either habitation or cultivation due to mountains and rocky sea coasts, and with only 16 percent of the land cultivated, the entire Japanese population actually lives in an area roughly the size of the state of Maine, about 85,470 sq km (33,000 sq ml). This makes Japan the most populated country in the world in terms of population per livable square mile.
2. The second paragraph tells us ……………
a. the rocky sea coast
b. the culture of Japan
c. the entire condition of Japan
d. geographical condition of Japan
sudah jelas coba baca lagi paragraph 2
Tri Raharjo, S.Pd 25 Februari 2010 0:0
Houdini was planning to perform an escape from a steel trunk wrapped in chains and dropped into a frozen river. Because the river was so cold, he’d only have a few minutes to escape in order to survive. They wrapped Houdini in a straight jacket, locked him into the trunk, secured the chains, and then dropped him into the river through a hole cut into the ice. Minutes passed and Houdini did not appear. When enough time has passed to make it appear that Houdini’s escape has failed, the grief stricken party left the scene and reported that Houdini had died. One friend remained at the hole in the ice, not yet convinced that Houdini had drowned. To this utter amazement, Houdini did indeed surface at the spot.
When the half-frozen artist had recovered enough, the told his friend that he hadn’t accounted for the current of the river under the ice. The river had carried the trunk, he couldn’t find the hole cut into the ice. He managed to get oxygen from air pockets caught between the ice and the water, but he had no way of finding the hole through the thick ice. Then he heard his mother’s voice calling him. He followed her voce, and it led him to the hole in the ice where his friend was waiting.
This was amazing, first, because his mother lived in another city and was nowhere hear the scene of the frozen river. But it is more amazing than that was the fact that when Houdini tried to call his mother, he was informed that she had died just hours before.
Pertanyaan2nya adalah:
1. What is the purpose of the text?
a. to explain
b. to expose
c. to describe
d. to entertain
e. to inform
Jawaban D Betul / salah?
2. “Then he heard his mother calling him …………… and it led him to the hole ……………” (paragraph 2) What had really happened?a. It was really his mother’s voice calling him from far distance.
b. It was only imagination.
c. It proved the tuition of mother to her son
d. His mother lived in other country at that time
e. His mother had really died some moments before
Jawaban B. Betul / salah
3. Referring to question no. 2 above, what can you learn?a. It was really his mother’s voice calling him from far distance.
b. It was only imagination.
c. It proved the tuition of mother to her son
d. His mother lived in other country at that time
e. His mother had really died some moments before
Jawaban C, Benar / salah
1D
2.B
3.C
Terima kasih, Bu Tri. Saya mencoba untuk menjawabnya. Tolong beritahu salah / benarnya. Kalau salah, mohon alasannya. Terima kasih banyak.
Houdini was planning to perform an escape from a steel trunk wrapped in chains and dropped into a frozen river. Because the river was so cold, he’d only have a few minutes to escape in order to survive. They wrapped Houdini in a straight jacket, locked him into the trunk, secured the chains, and then dropped him into the river through a hole cut into the ice. Minutes passed and Houdini did not appear. When enough time has passed to make it appear that Houdini’s escape has failed, the grief stricken party left the scene and reported that Houdini had died. One friend remained at the hole in the ice, not yet convinced that Houdini had drowned. To this utter amazement, Houdini did indeed surface at the spot.When the half-frozen artist had recovered enough, the told his friend that he hadn’t accounted for the current of the river under the ice. The river had carried the trunk, he couldn’t find the hole cut into the ice. He managed to get oxygen from air pockets caught between the ice and the water, but he had no way of finding the hole through the thick ice. Then he heard his mother’s voice calling him. He followed her voce, and it led him to the hole in the ice where his friend was waiting.
This was amazing, first, because his mother lived in another city and was nowhere hear the scene of the frozen river. But it is more amazing than that was the fact that when Houdini tried to call his mother, he was informed that she had died just hours before.
Pertanyaan2nya adalah:
1. What is the purpose of the text?
a. to explain
b. to expose
c. to describe
d. to entertain
e. to inform
Jawaban : D
2. “Then he heard his mother calling him …………… and it led him to the hole ……………” (paragraph 2) What had really happened?a. It was really his mother’s voice calling him from far distance.
b. It was only imagination.
c. It proved the tuition of mother to her son
d. His mother lived in other country at that time
e. His mother had really died some moments before
Jawaban : C.
3. Referring to question no. 2 above, what can you learn?a. It was really his mother’s voice calling him from far distance.
b. It was only imagination.
c. It proved the tuition of mother to her son
d. His mother lived in other country at that time
e. His mother had really died some moments before
Jawaban: C
sudah terjawab
Tri Raharjo, S.Pd 25 Februari 2010 0:0
bu/pak tolong bnt ngerjain soal brikut. 1. Tentukan nilai a+b dan hasil bagi P(x)= x pngkat 3 + px +q habis dibagi x kwadrat + x + 1 . 2. Sisa x kwadrat + 3x + 20 dibagi oleh x-a adl dua kali jika dibagi oleh x+a. Tentukan nilai a yg mungkin ! 3. Sebuah suku byk brderajat 3 dlm variabel x habis dibagi (x+2). Jika suku byk dibagi (x+1) bersisa 2, dibagi (x-1) bersisa 4, dan dibagi (x-2) bersisa 12. Tentukan suku byk tersebut !
Hallo Rizky, ini jawaban dari kami. Selamat belajar! kalau masih ada soal yang perlu ditinyakan : kirim lagi ke kami....kami tunggu! lampiran
Dra. Ida Lydiati, MM 25 Februari 2010 0:0
