https://file.aiquickdraw.com/mathbot/file/1730036484212tbi75t4c.jpg

To solve the problem, we need to find the unit digit (angka satuan) of the sum \(1^3 + 2^3 + 3^3 + 4^3 + 5^3\).

### Step-by-Step Solution:
1. **Calculate the unit digit of each term:**
   - \(1^3 = 1\) (unit digit is 1)
   - \(2^3 = 8\) (unit digit is 8)
   - \(3^3 = 27\) (unit digit is 7)
   - \(4^3 = 64\) (unit digit is 4)
   - \(5^3 = 125\) (unit digit is 5)

2. **Sum the unit digits:**
   \[
   1 + 8 + 7 + 4 + 5 = 25
   \]

3. **Find the unit digit of the sum \(25\):**
   The unit digit of 25 is \(5\).

### Conclusion:
The unit digit of \(1^3 + 2^3 + 3^3 + 4^3 + 5^3\) is **5**.

### Answer:
**B. 5**

Would you like more details or have any questions?

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### Related Questions:
1. What is the unit digit of \(6^3 + 7^3 + 8^3 + 9^3\)?
2. How would the answer change if the exponents were \(1\) instead of \(3\)?
3. Can we generalize a rule for finding the unit digit of a sum involving powers?
4. What is the unit digit of \(3^4 + 4^4 + 5^4\)?
5. How does the unit digit of \(9^3\) compare to that of \(9^4\)?

### Tip:
For quick calculations, focus only on the last digits of each term, as they determine the unit digit of the final sum.

Berapakah angka satuan dari 1^3 + 2^3 + 3^3 + 4^3 + 5^3?

Pelajari cara menentukan angka satuan dari 1^3 + 2^3 + 3^3 + 4^3 + 5^3 dengan penjelasan langkah demi langkah. Masalah ini mencakup konsep aritmetika, termasuk angka satuan dalam penjumlahan bilangan berpangkat. Cocok untuk siswa Kelas 7-9.

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