Question

21.
For which values of P does the pair of equations given below has unique solution.
4x + py + 8 = 0;
2x + 2y + 2=0​

Answer 1

Answer:

the condition of unique solution..

= a1/a2 not equal to b1/b2

put the values

we get

4/2 not equal to = p/2

p is not equal to 4...

thus the value of p can be any number except 4..

hope this will help you