MCQ
If two events are independent, then
- Athey must be mutually exclusive.
- Bthe sum of their probabilities must be equal to 1 .
- Cboth (a) and (b) are correct
- ✓None of these
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$\left( {1 + x\sqrt {{x^2} + {y^2}} } \right)\,dx + \left( {\sqrt {{x^2} + {y^2}} - 1 } \right)y\,dy = 0$