MCQ
Objective function of a $\text{LPP}$ is:
- Aa constraint
- ✓a function to be optimized
- Ca relation between the variables
- Dnone of these
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$ 2 x+7 y+\lambda z=3 $
$ 3 x+2 y+5 z=4 $
$ x+\mu y+32 z=-1$
has infinitely many solutions, then $(\lambda-\mu)$ is equal to $\qquad$