If cot theta + cot left( {frac{pi }{4} + thet | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(d) $\cot 	heta + \cot \left( {\frac{\pi }{4} + 	heta } ight) = 2$

$ \Rightarrow \frac{{\cos 	heta }}{{\sin 	heta }} + \frac{{\cos \{ (\pi /4

Vedclass · Accepted Answer

$n\pi \pm \frac{\pi }{6}$

Vedclass · Answer

(d) $\cot 	heta + \cot \left( {\frac{\pi }{4} + 	heta } ight) = 2$

$ \Rightarrow \frac{{\cos 	heta }}{{\sin 	heta }} + \frac{{\cos \{ (\pi /4) + 	heta \} }}{{\sin \{ (\pi /4) + 	heta \} }} = 2$

$ \Rightarrow $ $\sin \left( {\frac{\pi }{4} + 2	heta } ight) = 2\sin 	heta \sin \left( {\frac{\pi }{4} + 	heta } ight)$

$ \Rightarrow $ $\sin \left( {\frac{\pi }{4} + 2	heta } ight) + \cos \left( {\frac{\pi }{4} + 2	heta } ight) = \frac{1}{{\sqrt 2 }}$

$ \Rightarrow $ $\cos 2	heta = \frac{1}{2} $

$\Rightarrow 2	heta = 2n\pi \pm \frac{\pi }{3} $

$\Rightarrow 	heta = n\pi \pm \frac{\pi }{6}$.

If $\cot \theta + \cot \left( {\frac{\pi }{4} + \theta } \right) = 2$, then the general value of $\theta $ is

Similar Questions

If $\theta $ and $\phi $ are acute satisfying $\sin \theta = \frac{1}{2},$ $\cos \phi = \frac{1}{3},$ then $\theta + \phi \in $

If ${\left( {\frac{{\sin \theta }}{{\sin \phi }}} \right)^2} = \frac{{\tan \theta }}{{\tan \phi }} = 3,$ then the value of $\theta $ and $\phi $ are

If $\tan \theta + \tan 2\theta + \tan 3\theta = \tan \theta \tan 2\theta \tan 3\theta $, then the general value of $\theta $ is

If $\cos 2\theta = (\sqrt 2 + 1)\,\,\left( {\cos \theta - \frac{1}{{\sqrt 2 }}} \right)$, then the value of $\theta $ is

The number of values of $x$ in the interval $[0, 5\pi]$ satisfying the equation $3sin^2x\, \,-\,\, 7sinx + 2 = 0$ is