Easy
1 point
ID: #22798
Question
(5^(n+2) + 35 × 5^(n-1)) / (4 × 5^n) = ?
Options
1
4
Correct Answer
2
8
Correct Answer
3
5
Correct Answer
4
7
Correct Answer
Explanation
লব: 5ⁿ⁺² = 25×5ⁿ এবং 35×5ⁿ⁻¹ = 35×(5ⁿ/5) = 7×5ⁿ। যোগফল: 25×5ⁿ + 7×5ⁿ = 32×5ⁿ। হর: 4×5ⁿ। ভাগফল: (32×5ⁿ) / (4×5ⁿ) = 8।