Trigonometrical Equations
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સમીકરણ $\tan \theta + \tan \left( {\frac{\pi }{2} - \theta } \right) = 2$, નું સમાધાન કરે તેવો $\theta $ નો વ્યાપક ઉકેલ મેળવો.

A

$n\pi - \frac{\pi }{4}$

B

$n\pi + \frac{\pi }{4}$

C

$2n\pi \pm \frac{\pi }{4}$

D

$n\pi + {( - 1)^n}\frac{\pi }{4}$

Solution

(b) $\tan \theta + \frac{1}{{\tan \theta }} = 2$

$ \Rightarrow $ ${\tan ^2}\theta – 2\tan \theta + 1 = 0$

$ \Rightarrow $ $\tan \theta = 1 = \tan \frac{\pi }{4}$

$ \Rightarrow $ $\theta = n\pi + \frac{\pi }{4}$.

Standard 11
Mathematics

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