MCQ
Difference between sample space and subset of sample space is considered as:
- ANumerical complementary events.
- BEqual compulsory events.
- ✓Complementary events.
- DCompulsory events.
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$ x+y+z=4 $
$ 2 x+5 y+5 z=17 $
$ x+2 y+m z=n$
has infinitely many solutions, satisfy the equation :