a = 1, b = -1, c = 2, d = -2 হলে, a- (-b) (-c) - (-d) এর মান কত?
Solution
Correct Answer: Option C
a- (-b) (-c) - (-d)
= a-bc+d
= 1 -(-1)2+(-2)
= 1+2-2
= 1
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