256+128+64+…256 plus 128 plus 64 plus … 256+128+64+… ধারাটির সাধারণ পদ কত?

• ক 12n−8the fraction with numerator 1 and denominator 2 n minus 8 end-fraction 12𝑛−8
• খ 12n−6the fraction with numerator 1 and denominator 2 n minus 6 end-fraction 12𝑛−6
• গ 12n−7the fraction with numerator 1 and denominator 2 n minus 7 end-fraction 12𝑛−7
• ঘ 12n−9the fraction with numerator 1 and denominator 2 n minus 9 end-fraction 12𝑛−9 ✅ সঠিক উত্তর