Question

please help me in above question​

Answer 1

Answer:

16×2^n×2^1 -4×2^n

--------------------------

16× 2^n× 2^2 - 2× 2^n×2^2

2^n(16×2 - 4)

-------------------

2^n( 16×4 - 2×4)

now 2^n are cancled

(32-4)

---------

64-8

28

---

56

=1/2