SSC CHSL Tier-1 previous year question
If b − 1/b = 3, find b⁶ + 1/b⁶.
Asked in SSC CHSL Tier-1 (14 Nov 2025 Shift 1) · Quantitative Aptitude
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Correct answer: (A) 1298
b²+1/b² = (b−1/b)²+2 = 9+2 = 11. b⁶+1/b⁶ = (b²+1/b²)³ − 3(b²+1/b²) = 11³−33 = 1331−33 = 1298.
हिंदी में प्रश्न
यदि b − 1/b = 3, तो b⁶ + 1/b⁶ का मान ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
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सही उत्तर: (A) 1298
b²+1/b² = (b−1/b)²+2 = 9+2 = 11। b⁶+1/b⁶ = (b²+1/b²)³ − 3(b²+1/b²) = 1331−33 = 1298.
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