x³ = -1 হলে, x+1 = কত?
Solution
Correct Answer: Option A
x³ = -1
x = -1 (কারণ -1 এর ঘনমূল -1)
x + 1 = -1 + 1 = 0
x = -1 (কারণ -1 এর ঘনমূল -1)
x + 1 = -1 + 1 = 0
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