Please solve RD Sharma class 12 chapter Solution of Simultaneous Linear Equation exercise 7.1 question 9 maths textbook solution
Answer:
Given:
Sum of three numbers is 2 the second number is added to the sum of first and third, the sum is 1. By adding second and third numbers to five times the first number = 6
Hint:
X=A-1B is used to solve this problem. First we find the determinant and co-factor of matrix A, take it’s transpose, and that will be Adj A using Adj A calculate A-1.
Solution:
According to question, Let the three numbers be x, y, z