a = 1, b = 1, c = 2, d = -2 হলে a - ( -b) -(-c)

a = 1, b = 1, c = 2, d = -2 হলে a - ( -b) -(-c) - (-d) = কত?

A 2

B 4

C 6

D 8

Correct Answer: Option A

দেওয়া আছে, a = 1, b = 1, c = 2, d = -2

∴ a - (-b) - (-c) - (-d) = a + b + c+ d
= 1 + 1 + 2 - 2
= 2