Bilangan yang menempati posisi satuan dari hasil penjumlahan 1!2!3!+...+2018! sama dengan jumlah ayat pada surah ....(perhatikan bahwa n! = 1*2*3*...*n)
Answer (4)
friction as friend (1). It is becomes difficult to walk on a slippery road due to low friction. When we move on ice, it becomes difficult to walk due to low friction of ice .2. We can not fix nail in the wood or wall if there is no friction. It is friction which holds the nail. friction as foe
The main disadvantage of friction is that it produces heat in various parts of machines. In this way some useful energy is wasted as heat energy. 2. Due to friction we have to exert more power in machines.
Friction is useful when we park our cars. Without friction a car will not stop and remain static. So will our bed, sofa, chairs. They will slide too much and create problems.
We cannot stand properly, walk properly without friction. We will collide with each other every minute. In winter we rub our hands against each other, we generate heat using friction. that makes us warmer.
Friction dissipates some amount of kinetic energy as heat, radiation and sound. The creeking noise of brakes, old doors comes from friction. In machines, friction reduces the efficiency of energy used. More effort and energy required to perform some work. It causes wear and tear of the machines, tyres etc.
Friction is an essential force in our lives, playing a positive role in activities like walking and bike braking, while also causing problems like machine wear and overheating. By managing friction, we enhance safety and maintain machinery. Overall, understanding friction helps us appreciate its dual role in our daily experiences.
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Jawaban:maaf kalo salahPenjelasan dengan langkah-langkah: 1. Memahami Konsep Faktorial:- n! (n faktorial) adalah hasil perkalian semua bilangan bulat positif dari 1 hingga n.- Contoh: 5! = 1 * 2 * 3 * 4 * 5 = 1202. Menganalisis Pola Angka Satuan:- 1! = 1- 2! = 2- 3! = 6- 4! = 24- 5! = 120- 6! = 720- Perhatikan bahwa mulai dari 5! dan seterusnya, angka satuan selalu 0. Ini karena ada faktor 5 dan 2 dalam perkalian, yang menghasilkan kelipatan 10.3. Menghitung Jumlah Angka Satuan:- Karena semua faktorial mulai dari 5! hingga 2018! memiliki angka satuan 0, kita hanya perlu menjumlahkan angka satuan dari 1! hingga 4!:- 1 + 2 + 6 + 4 = 13- Jadi, angka satuan dari hasil penjumlahan 1! + 2! + 3! + ... + 2018! adalah 3.4. Mencari Surah dengan Jumlah Ayat 3:- Sekarang, kita perlu mencari surah dalam Al-Quran yang memiliki 3 ayat. Surah tersebut adalah Surah Al-Asr. Jadi, bilangan yang menempati posisi satuan dari hasil penjumlahan 1! + 2! + 3! + ... + 2018! sama dengan jumlah ayat pada surah Al-Asr.
