Question

. Find for what value of „a‟, the following pair of linear equations has infinitely many solutions? 2x + 5y = 8; ax + (3a - 2)y = 4a

Answer 1

a1/a2 =2 /a

b1 / b2 = 5 / ( 3a- 2 )

c1/ c2= 8 /4a = 2 / a

a1 / a2 = b1/ b2 = c1 / c2

2/a = 5 / 3a -2

6a-4 =5a

6a - 5a =4

a = 4

again, 5/ 3a-2 =2 / a

5a = 6a -4

5a- 6a = - 4

- a= -4

a = 4 answers

Answer 2

Step-by-step explanation:

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