Recent content by DoremiCSD

yea i understand but maybe this (x-r1)(x-r2)(x-r3) guide to vietta types? or not?

yea as you know vietta is formed like this abc=-d/a, a+b+c=-b/a, ab+bc+ca=c/a

i used the types of vietta and i found abc,a+b+c,ab+bc+ca because its says to not use vietta types only in second statement and then i used eulers equation a^3+b^3+c^3=3abc+(a+b+c)(a^2+b^2+c^2-ab-bc-ca)

yea but he (x-r1)(x-r2)(x-r3) conclude to the types of vietta.. he says to find the equation without to use vietta

Homework Statement If the equation 2x ^ 3 - 15X ^ 2 + 30 x - 7 = 0 has roots a, b ​​and c to find the value of the expression a ^ 3 + b ^ 3 + c ^ 3. Also to be found without using the types Vieta,the equation with roots 1 / (a-3), 1 / (b-3), 1 / (c-3) Homework Equations I found the...

Homework Statement The program should make should calculate the tax that corresponds to some income. The user gives 1. A natural number n is the length of the list at minus 2 and a length of 3 in the list below and equal to the number of rows in the table above non-header line and last...

Fortran 90:Can not run Homework Statement Write a program in fortran 90 which reads from the user 4 integers a,b,c and d. The program first needs to make sure that the following inequalities hold : a <=b <=c <=d. If not,the program needs to ask again those numbers from the user until...

1. to print the squares of integers k such that is a ≤ k ≤ b. 2. To print the product of all integers r is such that c ≤ r ≤ d. How i can to do the above 2 parts i stucked here.

program Arithmetical implicit none integers :: a, b, c, d PRINT *, "Give me an integer a:" READ *, a PRINT *, "Give me an integer b:" READ *, b PRINT *, "Give me an integer c:" READ *, c PRINT *, "Give me an integer d:" READ *, d IF(a .ge. b) THEN PRINT *, "Invalid."...

Fortran 90:(Description in program how to continue it) Homework Statement Write a program in Fortran 90 (not fortran 77) that reads from the user 4 integers a, b, c, d. The program should first check if applicable inequality a ≤ b, c ≤ d. If not then it should asking again numbers from the...