An approximate solution of the equation \( x^3 - 17 = 0 \) is to be obtained using the Newton-Raphson method. If the initial guess is \( x_0 = 2 \), the value at the end of the first iteration is \( x_1 = \) ________ (rounded off to two decimal places).
The Newton-Raphson method is given by the formula: \[ x_{n+1} = x_n - \frac{f(x_n)}{f'(x_n)} \] For the equation \( f(x) = x^3 - 17 \), we have: \[ f'(x) = 3x^2 \] Starting with the initial guess \( x_0 = 2 \), we can calculate the value of \( x_1 \).
Step 1: Calculate \( f(x_0) \) and \( f'(x_0) \): \[ f(x_0) = 2^3 - 17 = 8 - 17 = -9 \] \[ f'(x_0) = 3 \times 2^2 = 3 \times 4 = 12 \]
Step 2: Apply the Newton-Raphson formula: \[ x_1 = x_0 - \frac{f(x_0)}{f'(x_0)} = 2 - \frac{-9}{12} = 2 + 0.75 = 2.75 \] Therefore, the value at the end of the first iteration is \( x_1 = 2.75 \).
The value of \( k \), for which the linear equations \( 2x + 3y = 6 \) and \( 4x + 6y = 3k \) have at least one solution, is ________. (Answer in integer)
The Newton-Raphson method is used to find the root of \[ f(x) \equiv x^2 - x - 1 = 0 \] Starting with an initial guess \( x_0 = 1 \), the second iterate \( x_2 \) is __________ (rounded off to 2 decimal places).
For a three-bar truss loaded as shown in the figure, the magnitude of the force in the horizontal member AB is ____________ N (answer in integer).
A 4 × 4 digital image has pixel intensities (U) as shown in the figure. The number of pixels with \( U \leq 4 \) is:
Column-I has statements made by Shanthala; and, Column-II has responses given by Kanishk.
The number of patients per shift (X) consulting Dr. Gita in her past 100 shifts is shown in the figure. If the amount she earns is ₹1000(X - 0.2), what is the average amount (in ₹) she has earned per shift in the past 100 shifts?