2ⁿ⁺¹ - 2ⁿ = কত?

A 2

B 2ⁿ

C 4

D 2ⁿ⁺¹

Solution

Correct Answer: Option B

প্রদত্ত রাশি = 2ⁿ⁺¹ - 2ⁿ
= (2ⁿ × 2¹) - 2ⁿ [সূচকের নিয়ম aᵐ⁺ⁿ = aᵐ × aⁿ অনুযায়ী]
= 2ⁿ (2 - 1) [উভয় পদ থেকে 2ⁿ কমন নিয়ে]
= 2ⁿ × 1
= 2ⁿ

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions