Question

for what values of p does the pair of equation given below has unique solutions
4x+py+8=0
2x+2y+2=0​

Answer 1

• In the case of unique solution :-
• a1/a2 is not equal to b1/b2
• so ,a1=4 , a2=2, b1=p, b2=2
• a1/a2=4/2, b1/b2=p/2
• 4/2 is not = p/2
• p/2 is not = 4/2
• p is not =4/2 ×2
• p is not = 4