BD Merit - Freelancing, BCS, Bank, Primary, Admission, NTRCA

Discuss Forum

1. 3.2n−4.2n−2=কত?

Answer: Option A

Explanation:

3 . 2^{n} - 4 . 2^{n - 2} = 3 . 2^{n} - 2^{2} . 2^{n - 2} = 3 . 2^{n} - 2^{2 + n - 2} = 3 . 2^{n} - 2^{n} = 2^{n} (3 - 1) = 2^{n} . 2^{1} = 2^{n + 1}

Post your comments here:

Name:

Mobile:

Email:(Optional)

» Your comments will be displayed only after manual approval.