Errors and Approximation

IMPORTANT

Errors and Approximation: Overview

This topic covers concepts such as Approximations in Calculus, Approximating Change/Error in Function y=f(x) w.r.t Change/Error in x and Approximating Function y = f(x+Dx) using its Derivative.

Important Questions on Errors and Approximation

EASY
IMPORTANT

If the radius of a sphere is measured as 9 cm. If this radius is increased by 0.03 cm, then the approximate change in its surface area is

EASY
IMPORTANT

Which of the following is the approximate change in the volume V of a cube of side x meters caused by increasing the side by 2%.

HARD
IMPORTANT

Use differential to approximate 36.6.

MEDIUM
IMPORTANT

Find the approximate value of

e1.002 given e=2.7183

MEDIUM
IMPORTANT

Find the approximate value of

sin-10.51 given 3=1.7321

MEDIUM
IMPORTANT

Find the approximate value of

sin60°,0',10'' given 1°=0.0175c

MEDIUM
IMPORTANT

Find the approximate value of

26.963

HARD
IMPORTANT

If the radius af a sphere is measured as 7 cm with an error of 0.01 cm, then the approximate error is calculating the volume is (use π=227)

MEDIUM
IMPORTANT

Find the approximate change in the volume V of a cube of side x meters caused by increasing side by 2%.

EASY
IMPORTANT

The approximate value of cot-11.001 is

EASY
IMPORTANT

The approximate value of the function fx=x3-3x+5 at x=1.99 is

EASY
IMPORTANT

The angle A of ΔABC is found by measurement to be 6712° and the area of ΔABC is calculated from the measurements of b,c,A. In measuring A, an error of 9 minutes is made, then the percentage error in the area of the triangle is

EASY
IMPORTANT

Find the approximate value of

x3-2x2+3x+2 at x=3.02

MEDIUM
IMPORTANT

Find the approximate value of

x4+2x2+3 at x=2.01

MEDIUM
IMPORTANT

Find the approximate value correct up to four places of decimals of

loge9.01 given loge3=1.0986

MEDIUM
IMPORTANT

Find the approximate value correct up to four places of decimals of

loge101 given loge10=2.3026

MEDIUM
IMPORTANT

Find the approximate value of

tan45°,10' given 1°=0.0175c

MEDIUM
IMPORTANT

Find the approximate value of

4.015

EASY
IMPORTANT

Find the approximate value of

3.96832

MEDIUM
IMPORTANT

Find the approximate value correct up to four places of decimals of

144.02