673 = _____
ক
300733
খ
300753
গ
300763
ঘ
300793
সঠিক উত্তর: 300763
In order to calculate the cube of 67 we use the formula, (a-b)3, where we consider a=70 and b=3 Therefore (70-3)3 = 703 – 3 × 702 × 3 + 3 × 70 × 32 – 33 Therefore (70-3)3 = 343000 – 44100 + 1890 – 27 Therefore (70-3)3 = 300763.