MCQ
The lines $l_1$ and $l_2$ intersect. The shortest distance between them is
- Ainfinity
- Bnegative
- Cpositive
- ✓zero
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$S :$ Both $\sin x$ and cosx are decreasing functions in $\left( {{\pi \over 2},\pi } \right)$
$R:$ If a differentiable function decreases in $(a, b)$ then its derivative also decreases in $ (a, b).$
Which of the following is true