Question

do it fast with explaination

Answer 1

infinity many solution possible only when, D =0 ,
D1 = D2 = D3 = 0

here we take D1 = 0
, option (c) is correct

Answer 2

Step-by-step explanation:

D1 = D2 = D3 = 0

here we take D1 = 0

, option (c) is correct