Q74.The number of real roots of the equation ๐6๐ฅ- ๐4๐ฅ- 2๐3๐ฅ- 12๐2๐ฅ+ ๐๐ฅ+ 1 = 0 is: (1) 2 (2) 4 (3) 6 (4) 1 ๐๐ฅ is
What This Question Tests
This question involves converting an exponential equation into a polynomial equation using substitution, then solving the polynomial equation and checking for valid real roots for the original exponential variable.
Concepts Tested
Formulas Used
Quadratic formula or factorization
๐ NCERT Sections This Tests
3.23 โ The Rate Constant For The Decomposition Of Hydrocarbons Is 2.418 ร 10โ5Sโ1
Chemistry Class 11 ยท Chapter 3
3.23 The rate constant for the decomposition of hydrocarbons is 2.418 ร 10โ5sโ1 at 546 K. If the energy of activation is 179.9 kJ/mol, what will be the value of pre-exponential factor.
3.26 โ The Decomposition Of Hydrocarbon Follows The Equation
Chemistry Class 11 ยท Chapter 3
3.26 The decomposition of hydrocarbon follows the equation k = (4.5 ร 1011sโ1) e-28000K/T Calculate Ea. 87 Chemical Kinetics Reprint 2025-26
13.5 โ The Q Value Of A Nuclear Reaction A + B ยฎ C + D Is Defined By
Physics Class 12 ยท Chapter 13
13.5 The Q value of a nuclear reaction A + b ยฎ C + d is defined by Q = [ mA + mb โ mC โ md]c2 where the masses refer to the respective nuclei. Determine from the given data the Q-value of the following reactions and state whether the reactions are exothermic or endothermic. (i) 11 H+13 H โ12 H+12 H (ii) 126 C+126 C โ1020 Ne+ 24 He Atomic masses are given to be m ( 12 H ) = 2.014102 u m ( 13 H) = 3.016049 u m ( 126 C ) = 12.000000 u m ( 1020 Ne ) = 19.992439 u
๐ Question Details
- Chapter
- Quadratic Equations
- Topic
- Solving exponential equations
- Year
- 2021
- Shift
- 25 Jul Shift 1
- Q Number
- Q74
- Type
- MCQ
- NCERT Ref
- Class 12 Mathematics Ch 6: Applications of Derivatives
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