og ds 105

[simba12123]

Is absolute value x = y-z?


1. x+y=z
2. x<0

qa is c


question is rephrased as

is x < y-z? Is x>-y+z?

is there a concrete way to justify C.

[stubbornp]

Is absolute value x = y-z?


1. x+y=z
2. x<0

qa is c


question is rephrased as

is x < y-z? Is x>-y+z?

is there a concrete way to justify C.

stmt 1:x+y=z

x=z-y

x can be +ve or -ve...--insufficient


stmt b-x<0--dont have anything for y and z--insufficient

by combinig both,

we come to know x=z-y and x<0

means z-y<0

it means y-z>0

so |x|=y-z

IMO C...hope it clears now