English
Tamil Nadu Board of Secondary EducationHSC Science Class 12

Find the differential dy for the following functions: y = (3+sin(2x))23

Advertisements
Advertisements

Question

Find the differential dy for the following functions:

y = `(3 + sin(2x))^(2/3)`

Sum
Advertisements

Solution

dy = `{2/3[3 + sin(2x)]%^((-1)/3) [(cos2x)(2)]} "d"x`

= `{4/3(3 + sin 2x)^((-1)/3) (cos 2x)} "d"x`

= `{4/3 (3 + sin 2x)^((-1)/3) (cos 2x)}  "d"x`

= `{4/3 (cos2x)/(3 + sin2x)^(1/3)} "d"x`

shaalaa.com
Linear Approximation and Differentials
  Is there an error in this question or solution?
Chapter 8: Differentials and Partial Derivatives - Exercise 8.2 [Page 67]

APPEARS IN

Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 12 TN Board
Chapter 8 Differentials and Partial Derivatives
Exercise 8.2 | Q 1. (ii) | Page 67

RELATED QUESTIONS

Let f(x) = `root(3)(x)`. Find the linear approximation at x = 27. Use the linear approximation to approximate `root(3)(27.2)`


Use the linear approximation to find approximate values of `root(4)(15)`


Find a linear approximation for the following functions at the indicated points.

f(x) = x3 – 5x + 12, x0 = 2


Find a linear approximation for the following functions at the indicated points.

h(x) = `x/(x + 1), x_0` = 1


The radius of a circular plate is measured as 12.65 cm instead of the actual length 12.5 cm. find the following in calculating the area of the circular plate:

Absolute error


A sphere is made of ice having radius 10 cm. Its radius decreases from 10 cm to 9.8 cm. Find approximations for the following:

Change in the volume


A sphere is made of ice having radius 10 cm. Its radius decreases from 10 cm to 9.8 cm. Find approximations for the following:

Change in the surface area


The time T, taken for a complete oscillation of a single pendulum with length l, is given by the equation T = `2pi sqrt(l/g)` where g is a constant. Find the approximate percentage error in the calculated value of T corresponding to an error of 2 percent in the value of l


Find df for f(x) = x2 + 3x and evaluate it for x = 3 and dx = 0.02


Find Δf and df for the function f for the indicated values of x, Δx and compare:

f(x) = x3 – 2x2, x = 2, Δx = dx = 0.5


Find Δf and df for the function f for the indicated values of x, Δx and compare:

f(x) = x2 + 2x + 3, x = – 0.5, Δx = dx = 0.1


The trunk of a tree has a diameter of 30 cm. During the following year, the circumference grew 6 cm. What is the percentage increase in the area of the cross-section of the tree?


An egg of a particular bird is very nearly spherical. If the radius to the inside of the shell is 5 mm and the radius to the outside of the shell is 5.3 mm, find the volume of the shell approximately


The relation between the number of words y a person learns in x hours is given by y = `sqrt(x), 0 ≤ x ≤ 9`. What is the approximate number of words learned when x changes from 4 to 4.1 hours?


A circular plate expands uniformly under the influence of heat. If its radius increases from 10.5 cm to 10.75 cm, then find an approximate change in the area and the approximate percentage change in the area


Choose the correct alternative:

A circular template has a radius of 10 cm. The measurement of the radius has an approximate error of 0.02 cm. Then the percentage error in the calculating the area of this template is


Choose the correct alternative:

If f(x) = `x/(x + 1)`, then its differential is given by


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×