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Trigonometrical Equations
easy
त्रिकोणमितीय समीकरण $\tan \theta = \cot \alpha $ का व्यापक हल है
A
$\theta = n\pi + \frac{\pi }{2} - \alpha $
B
$\theta = n\pi - \frac{\pi }{2} + \alpha $
C
$\theta = n\pi + \frac{\pi }{2} + \alpha $
D
$\theta = n\pi - \frac{\pi }{2} - \alpha $
Solution
(a) $\tan \theta = \cot \alpha$
$\Rightarrow \tan \theta = \tan \left( {\frac{\pi }{2} – \alpha } \right)$
$ \Rightarrow $ $\theta = n\pi + \frac{\pi }{2} – \alpha $.
Standard 11
Mathematics
