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Numerical Methods II Odd 2021-2022

Total questions: 10

Worksheet time: 19mins

Name
Class
Date
1.

False Position method is used to solve

a)

quadratic equations

b)

system of linear equations

c)

eigen value problems

d)

nonlinear equations

2.

Regula Falsi method is also known as ------

a)

Interval halving method

b)

Bolzano's method

c)

Method of False Position

d)

Newton method

3.

The iteration formula for Newton-Raphson method is

a)

xn+1=xn+f(xn)f(xn)x_{n+1}=x_n+\frac{f\left(x_n\right)}{f'\left(x_n\right)}

b)

xn+1=xnf(xn)f(xn)x_{n+1}=x_n-\frac{f\left(x_n\right)}{f'\left(x_n\right)}

c)

xn+1=xnf(xn)f(xn)x_{n+1}=x_n-\frac{f'\left(x_n\right)}{f\left(x_n\right)}

d)

xn+1=xn+f(xn)f(xn)x_{n+1}=x_n+\frac{f'\left(x_n\right)}{f\left(x_n\right)}

4.

The following graphs show the situations where Newton-Raphson method may not work, except

a)
b)
c)
d)
5.

What line is used to find the next iteration in Newton-Raphson method?

a)

Secant

b)

Normal

c)

Chord

d)

Tangent

6.

In Newton-Raphson method, if we want to give our answer correct to 3 decimal places then we need to use how many decimal places in the calculation of the iterations?

a)

3 decimal places

b)

2 decimal places

c)

4 decimal places

d)

any number of decimal places will do

7.

If we want to give answer correct to 3 significant figures in the Newton-Raphson method, what the the stopping criteria?

a)

when two successive iterations give the same answers correct to 4 significant figures.

b)

when two successive iterations give the same answers correct to 2 significant figures.

c)

when two successive iterations give the same answers correct to 3 significant figures.

d)

when two successive iterations give the same answers correct to 1 significant figures.

8.

Given that the equation  2x34x21=02x^3-4x^2-1=0  has a root in the interval [2, 3].  Using Newton-Raphson method, the root correct to 2 decimal places is

a)

2.13

b)

2.11

c)

2.09

d)

2.15

9.

Which of the following iteration formula can not be derived from x26x+2=0x^2-6x+2=0  

a)

 x=x2+26x=\frac{x^2+2}{6}  

b)

 x=6x2x=\sqrt{6x-2}  

c)

 x=62xx=6-\frac{2}{x}  

d)

 x=3(x2)x=\sqrt{3\left(x-2\right)}  

10.

A theorem that guaranteed that there is at least a root in the interval is

a)

Rolle's Theorem

b)

Extreme Value Theorem

c)

Intermediate Value Theorem