Most Important Selected Qs for JEE AdvancedMathematicsBasics of Mathematics
Paragraph: Consider a= ₂ 3, b= ₃ 5 and c= ₅ 7 . Question: Which of the following is incorrect?
Options
- Aa b c < 3
- Ba b c>2
- Ca b c < 1
- Da b c < 4
Correct answer
C. a b c < 1
Step-by-step solution
(i) ₁₄ 63= ₇ 63 ₇ 14 = 1+ ₇ 9 ₇ 2+1 = 1+ 2 b c 1+ 1 a b c = a b c+2 a a b c+1 (ii) aligned & a b c= ₂ 7 & ₂ 4 < a b c < ₂ 8 & 2 < a b c < 3 aligned