हिंदी

P If F (X) = Log X 2 Write the Value of F' (X).

Advertisements
Advertisements

प्रश्न

If f (x) =  \[\log_{x_2}\]write the value of f' (x). 

Advertisements

उत्तर

\[f(x) = \log_{x^2} x^3 \]
\[ = \frac{\log x^3}{\log x^2} (\text{ Change of base property })\]
\[ = \frac{3 \log x}{2 \log x}\]
\[ = \frac{3}{2}\]
\[f'\left( x \right) = 0 (\text{ Since } \frac{3}{2} \text{ is a constant })\]

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 30: Derivatives - Exercise 30.6 [पृष्ठ ४७]

APPEARS IN

आर.डी. शर्मा Mathematics [English] Class 11
अध्याय 30 Derivatives
Exercise 30.6 | Q 14 | पृष्ठ ४७

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Find the derivative of 99x at x = 100.


Find the derivative of the following function (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers):

`4sqrtx - 2`


Find the derivative of the following function (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers):

sin (x + a)


Find the derivative of the following function (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers):

`(a + bsin x)/(c + dcosx)`


Find the derivative of the following function (it is to be understood that a, b, c, d, p, q, r and s are fixed non-zero constants and m and n are integers):

`(sin(x + a))/ cos x`


Find the derivative of f (x) = 3x at x = 2 


Find the derivative of f (x) x at x = 1

 


Find the derivative of f (x) = cos x at x = 0


\[\frac{x^2 + 1}{x}\]


k xn


x ex


Differentiate  of the following from first principle:

\[\cos\left( x - \frac{\pi}{8} \right)\]


Differentiate  of the following from first principle:

 x sin x


Differentiate each of the following from first principle:

\[\frac{\sin x}{x}\]


Differentiate each of the following from first principle: 

\[\frac{\cos x}{x}\]


\[\sqrt{\tan x}\]


\[\sin \sqrt{2x}\]


\[\left( x + \frac{1}{x} \right)\left( \sqrt{x} + \frac{1}{\sqrt{x}} \right)\] 


\[\frac{2 x^2 + 3x + 4}{x}\] 


\[\frac{( x^3 + 1)(x - 2)}{x^2}\] 


\[\log\left( \frac{1}{\sqrt{x}} \right) + 5 x^a - 3 a^x + \sqrt[3]{x^2} + 6 \sqrt[4]{x^{- 3}}\] 


For the function \[f(x) = \frac{x^{100}}{100} + \frac{x^{99}}{99} + . . . + \frac{x^2}{2} + x + 1 .\]

 

x3 ex 


xn loga x 


(x sin x + cos x) (x cos x − sin x) 


\[\frac{x^2 \cos\frac{\pi}{4}}{\sin x}\] 


x4 (5 sin x − 3 cos x)


\[\frac{1}{a x^2 + bx + c}\] 


\[\frac{e^x + \sin x}{1 + \log x}\] 


\[\frac{x \tan x}{\sec x + \tan x}\]


\[\frac{{10}^x}{\sin x}\] 


\[\frac{3^x}{x + \tan x}\] 


\[\frac{a + b \sin x}{c + d \cos x}\] 


\[\frac{x + \cos x}{\tan x}\] 


Write the value of \[\lim_{x \to a} \frac{x f (a) - a f (x)}{x - a}\]


If \[\frac{\pi}{2}\] then find \[\frac{d}{dx}\left( \sqrt{\frac{1 + \cos 2x}{2}} \right)\]


Mark the correct alternative in  of the following:
If\[f\left( x \right) = 1 + x + \frac{x^2}{2} + . . . + \frac{x^{100}}{100}\] then \[f'\left( 1 \right)\] is equal to 


Find the derivative of 2x4 + x.


(ax2 + cot x)(p + q cos x)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×