NCERT Class 10

For which value (s) of k will the pair of equations kx + 3y = k – 3, 12x + ky = k have no solution? 12x + ky = k have no solution? For which value (s) of k will the pair of equations kx + 3y = k – 3 November 22, 2020 [...]

For which values(s) of λ , do the pair of linear equations λx + y = λ^2 and x + λy = 1 have (i) no solution ? (ii) infinitely many solutions ? (iii) a unique solution ? do the pair of linear equations λx + y = λ^2 and x + λy = 1 [...]

The line represented by x = 7 is parallel to the x-axis. Justify whether the statement is true or not. The line represented by x = 7 is parallel to the x-axis. Justify whether the statement is true or not. November 22, 2020 Category: Chapter 3 - Pair of Linear Equations in Two Variables , [...]

For all real values of c, the pair of equations x – 2y = 8 and 5x – 10y = c have a unique solution. Justify whether it is true or false. For all real values of c the pair of equations x – 2y = 8 and 5x – 10y = c have a [...]

For the pair of equations λx + 3y = -7 and 2x + 6y = 14 to have infinitely many solutions, the value of λ should be 1. Is the statement true? Give reasons. For the pair of equations λx + 3y = -7 and 2x + 6y = 14 to have infinitely many solutions [...]

For the pair of equations λx + 3y = -7 and 2x + 6y = 14 to have infinitely many solutions, the value of λ should be 1. Is the statement true? Give reasons. For the pair of equations λx + 3y = -7 and 2x + 6y = 14 to have infinitely many solutions [...]

Are the following pair of linear equations consistent? Justify your answer. (iv) x + 3y = 11; 2(2x + 6y) = 22 Are the following pair of linear equations consistent? Justify your answer. (iv) x + 3y = 11; 2(2x + 6y) = 22 November 22, 2020 Category: Chapter 3 - Pair of Linear Equations [...]

Are the following pair of linear equations consistent? Justify your answer. (iii) 2ax + by = a; 4ax + 2by – 2a = 0; a,b ≠ 0 Are the following pair of linear equations consistent? Justify your answer. (iii) 2ax + by = a; 4ax + 2by - 2a = 0; a B = 0 [...]

Are the following pair of linear equations consistent? Justify your answer. (ii) 3/5x – y = 1/2, 1/5x – 3y = 1/6 1/5x – 3y = 1/6 Are the following pair of linear equations consistent? Justify your answer. (ii) 3/5x – y = 1/2 November 22, 2020 Category: Chapter 3 - Pair of Linear Equations [...]

Are the following pair of linear equations consistent? Justify your answer. (i) -3x – 4y = 12; 4y + 3x = 12 Are the following pair of linear equations consistent? Justify your answer. (i) -3x – 4y = 12; 4y + 3x = 12 November 22, 2020 Category: Chapter 3 - Pair of Linear Equations [...]