Last updated at July 23, 2021 by Teachoo
Transcript
Ex 3.2, 3 On comparing the ratios ๐1/๐2 , ๐1/๐2 & ๐1/๐2 , find out whether the following pair of linear equations are consistent, or inconsistent. 3x + 2y = 5 ; 2x โ 3y = 7 3x + 2y โ 5 = 0 2x โ 3y โ 7 = 0 3x + 2y โ 5 = 0 Comparing with a1x + b1y + c1 = 0 โด a1 = 3 , b1 = 2 , c1 = โ5 2x โ 3y โ 7 = 0 Comparing with a2x + b2y + c2 = 0 โด a2 = 2 , b2 = โ3 , c2 = โ7 a1 = 3 , b1 = 2 , c1 = โ5 & a2 = 2 , b2 = โ3 , c2 = โ7 ๐๐/๐๐ ๐1/๐2 = 3/2 ๐๐/๐๐ ๐1/๐2 = 2/(โ3) ๐1/๐2 = (โ2)/3 ๐๐/๐๐ ๐1/๐2 = (โ5)/(โ7) ๐1/๐2 = 5/7 Since ๐1/๐2 โ ๐1/๐2 We have a unique solution Therefore, our system is consistent.
Chapter 3 Class 10 Pair of Linear Equations in Two Variables
Example 10 Important
Example 11 Important
Example 13 Important
Example 14 Important
Example 19 Important
Ex 3.2, 1 (i) Important
Ex 3.2, 3 (i) Important You are here
Ex 3.2, 6 Important
Ex 3.2, 7 Important
Ex 3.5, 2 (i) Important
Ex 3.6, 1 (i) and (ii) Important
Ex 3.6, 1 (iii) and (iv)
Ex 3.6, 1 (v) and (vi) Important
Ex 3.6, 1 (vii) and (viii) Important
Ex 3.6, 2 (i) Important
Chapter 3 Class 10 Pair of Linear Equations in Two Variables
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