/

Learn

Friday, 9 October

/

JEE Main 2024 · MathsMultiple choiceSingle correctEasyCalculation

JEE Main 8 April 2024, Shift 1, Maths Q3

Question 3 of 90 in this shift, Maths question 3 of 30, Section A.

The sum of all the solutions of the equation

(8)^{2x}-16\cdot(8)^x+48=0

is :

(1) $\log_8(4)$
(2) $\log_8(6)$
(3) $1+\log_6(8)$
(4) $1+\log_8(6)$ Official answer

Official answer

Option 4

NTA final key.

Chapter: Complex Numbers and Quadratic Equations
Topic: Quadratic Roots
Idea tested: Exponential Reducible to Quadratic

Same idea in other shifts

Asked 2× in all

25 Jul 2021, Shift 1 · Q72The number of real roots of the equation $e^{6x}-e^{4x}-2e^{3x}-12e^{2x}+e^x+1=0$ is :HardSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.