Class 9 Maths Chapter 13 | Questions 9 & 10 | Two Variables One Line #Ganita Manjari part 2 endofch
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Class 9 Maths Chapter 13 | Questions 9 & 10 | Two Variables One Line #Ganita Manjari part 2 endofch
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147 просмотров · 2 недели назад
📘 Class 9 Maths Chapter 13 – Two Variables, One Line
In this video, we solve Questions 9 and 10 from the End-of-Chapter Exercises.
Learn how to find unknown constants in a pair of linear equations when the equations have infinitely many solutions or represent coincident lines.
*Question 9:*
Find the values of a and b for which the following system of equations has infinitely many solutions:
(a + b)x – 2by = 5a + 2b + 1; 3x – y = 14.
*Question 10:*
Find the value of ‘k’ for which the following system of equations represents a pair of coincident lines:
x + 2y = 3; (k – 1)x + (k + 1)y = k + 3.
📌 Topics covered:
• Infinitely many solutions
• Coincident lines
• Conditions for pairs of linear equations
• Finding unknown constants
• Step-by-step NCERT solutions
📚 Chapter 13: Two Variables, One Line
📖 End-of-Chapter Exercises: Questions 9 & 10
#Class9Maths #NCERTSolutions #CoincidentLines #LinearEquations #GanitaManjari