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JEE Advanced
Exam
JEE Advanced
Subject
Mathematics
Chapter
Basics of Mathematics

JEE Advanced · Mathematics · Basics of Mathematics

For the equation 3^x=4^ x^2 , the correct statement(s) is/are:

For the equation 3x=4x23^x=4^{x^2}, the correct statement(s) is/are:

Options

  1. Anumber of solutions is 2 .
  2. Bnumber of solution is 1 .
  3. Cone of the solution is log⁡4(333……∞)\log _4(\sqrt{3 \sqrt{3 \sqrt{3 \ldots \ldots \infty}}})
  4. Dthe sum of all the solutions is log⁡4\l\log _4 \lleft((1+\ssqrt2)2−232)sqrt{2})^2-2^{\frac{3}{2}})

Correct answer

D. the sum of all the solutions is log⁡4\l\log _4 \lleft((1+\ssqrt2)2−232)sqrt{2})^2-2^{\frac{3}{2}})

Step-by-step solution

3x=4x23^x=4^{x^2}⇒xlog⁡23=x2log⁡24⇒x=0,x=12log⁡23=log⁡43\begin{aligned} & \Rightarrow \quad x \log _2 3=x^2 \log _2 4 \\ & \Rightarrow \quad x=0, x=\frac{1}{2} \log _2 3=\log _4 3\end{aligned}$$
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