MCQ
${\sin ^{ - 1}}x + {\sin ^{ - 1}}\frac{1}{x} + {\cos ^{ - 1}}x + {\cos ^{ - 1}}\frac{1}{x} = $
- ✓$\pi $
- B$\frac{\pi }{2}$
- C$\frac{{3\pi }}{2}$
- DNone of these
$= \{ {\sin ^{ - 1}}(x) + {\cos ^{ - 1}}(x)\} + \left\{ {{{\sin }^{ - 1}}\left( {\frac{1}{x}} \right) + {{\cos }^{ - 1}}\left( {\frac{1}{x}} \right)} \right\}$
$ = \frac{\pi }{2} + \frac{\pi }{2} = \pi $.
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Number of cars manufactured
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Colour
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Vento
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Creta
|
Wagonr
|
|
Red
|
$65$ | $88$ | $93$ |
|
White
|
$54$ | $42$ | $80$ |
|
Black
|
$66$ | $52$ | $88$ |
|
Sliver
|
$37$ | $49$ | $74$ |