MCQ
If $y = x^{ln\, x}$, then $dy/dx$ equals :-
  • A
    $ln\, x . x^{ln\, x-1}$
  • $x^{ln \,x-1} . 2ln\, x$
  • C
    $x\, ln\, (ln\, x)$
  • D
    $1/(x\, ln\, x) . x^{ln\, x-1}$

Answer

Correct option: B.
$x^{ln \,x-1} . 2ln\, x$
b

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

$\int_{}^{} {\frac{{\cot x}}{{\log \sin x}}} \;dx = $
$\int_{}^{} {{{\left( {x + \frac{1}{x}} \right)}^3}} dx = $
The number of arbitrary constants in the particular solution of a differential equation of third order are:
If $a$ is perpendicular to $b$ and $c,|a| = 2,|b| = 3$, $|c| = 4$ and the angle between $b$ and $c$ is $\frac{{2\pi }}{3}$, then $[a\;b\;c]$ is equal to
Find the minor of the element 2 in the determinant $\triangle=\begin{bmatrix}1&9\\2&3\end{bmatrix}$?
The function $f(x) = {x^3} - 3{x^2} - 24x + 5$ is an increasing function in the interval given below
If $f(x) = cos \left[ {\frac{\pi }{x}} \right] cos \left( {\frac{\pi }{2}\,\,\left( {x\,\, - \,\,1} \right)} \right)$ then $f(x)$ is continuous at :

where $[x]$ is the greatest integerr function of $x$, 

A line $l$ passing through the origin is perpendicular to the lines

$l_1:(3+ t ) \hat{ i }+(-1+2 t ) \hat{ j }+(4+2 t ) \hat{ k },-\infty< t <\infty $

$l_2:(3+2 t ) \hat{ i }+(3+2 t ) \hat{ j }+(2+ s ) \hat{ k },-\infty< s <\infty$

Then, the coordinate$(s)$ of the point$(s)$ on $l_2$ at a distance of $\sqrt{17}$ from the point of intersection of $l$ and $l_1$ is(are)

$(A)$ $\left(\frac{7}{3}, \frac{7}{3}, \frac{5}{3}\right)$ $(B)$ $(-1,,-1,0)$ $(C)$ $(1,1,1)$ $(D)$ $\left(\frac{7}{9}, \frac{7}{9}, \frac{8}{9}\right)$

The value of $\int_{1/e}^{\tan x} {\frac{{t\,dt}}{{1 + {t^2}}}} + \int_{1/e}^{\cot x} {\frac{{dt}}{{t(1 + {t^2})}}} = $
Choose the correct answer from given four options in each of the Exercise:The value of the determinant $\begin{vmatrix}\text{x}&\text{x}+\text{y}&\text{x}+2\text{y}\\\text{x}+2\text{y}&\text{x}&\text{x}+\text{y}\\\text{x}+\text{y}&\text{x}+2\text{y}&\text{x}\end{vmatrix}$is: