Question

solve the following questions:
1. x-ky = 12 ; 3x+2y = -5 find k if there exists unique solution.
2. 4x+py+8 = 0 ; 2x+2y+2 = 0 find p if there exists no solution.

Answer 1

Answer:

2) 4

Step-by-step explanation:

4x+py+8=0

2x+2y+2=0

If there is no solution then,

(coefficient of x in equation 1)/(coefficient of x in equation 2) =

(coefficient of y in equation 1)/(coefficient of y in equation 2)

So,

4/2=p/2

p=4