If ${\log _{10}}3 = 0.477$,then the number of digits in ${3^{40}}$ is
- A$18$
- B$19$
- C$20$
- D$21$
Explore More
Similar Questions
The sum of all the real solutions of the equation $ \log_{(x+3)}(6x^{2}+28x+30)=5-2\log_{(6x+10)}(x^{2}+6x+9) $ is equal to:
DifficultJEE MAIN 2026
View SolutionFor the function $y = \log_a x$ to be defined,the base $a$ must be:
The set of real values of $x$ that satisfy the inequality ${\log _{1/2}}({x^2} - 6x + 12) \ge - 2$ is:
Difficult
View SolutionThe logarithm of $32\sqrt[5]{4}$ to the base $2\sqrt{2}$ is:
Easy
View SolutionIf $(x^2 \log _x 27) \cdot \log _9 x = x + 4$,then the value of $x$ is
Vedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo