1
GATE CE 2024 Set 2
MCQ (Single Correct Answer)
+1
-0.33

The second derivative of a function $f$ is computed using the fourth-order Central Divided Difference method with a step length $h$. The CORRECT expression for the second derivative is

A

$\frac{1}{12h^2} \left[ -f_{i+2} + 16 f_{i+1} - 30 f_i + 16 f_{i-1} - f_{i-2} \right]$

B

$\frac{1}{12h^2} \left[ f_{i+2} + 16 f_{i+1} - 30 f_i + 16 f_{i-1} - f_{i-2} \right]$

C

$\frac{1}{12h^2} \left[ -f_{i+2} + 16 f_{i+1} - 30 f_i + 16 f_{i-1} + f_{i-2} \right]$

D

$\frac{1}{12h^2} \left[ -f_{i+2} - 16 f_{i+1} + 30 f_i - 16 f_{i-1} - f_{i-2} \right]$

2
GATE CE 2024 Set 1
Numerical
+1
-0

Consider the data of $f(x)$ given in the table.

$i$ $0$ $1$ $2$
$x_i$ $1$ $2$ $3$
$f(x_i)$ $0$ $0.3010$ $0.4771$

The value of $f(1.5)$ estimated using second-order Newton’s interpolation formula is ________________ (rounded off to 2 decimal places).

Your input ____
3
GATE CE 2022 Set 1
Numerical
+1
-0

Consider the following recursive iteration scheme for different values of variable P with the initial guess x1 = 1:

$${x_{n + 1}} = {1 \over 2}\left( {{x_n} + {P \over {{x_n}}}} \right)$$, n = 1, 2, 3, 4, 5

For P = 2, x5 is obtained to be 1.414, rounded-off to three decimal places. For P = 3, x5 is obtained to be 1.732, rounded-off to three decimal places. If P = 10, the numerical value of x5 is __________. (round off to three decimal places)

Your input ____
4
GATE CE 2016 Set 2
MCQ (Single Correct Answer)
+1
-0.3
The quadratic approximation of $$f\left( x \right) = {x^3} - 3{x^2} - 5\,\,$$ at the point $$x=0$$ is
A
$$3{x^2} - 6x - 5$$
B
$$ - 3{x^2} - 5$$
C
$$ - 3{x^2} + 6x - 5$$
D
$$3{x^2} - 5$$
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