trigonometry

Related Questions

• Common roots of the equations $2{{\sin }^{2}}x+{{\sin }^{2}}2x=2$ and $\sin 2x+\cos 2x=\tan x,$ are

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• Two men are on the opposite side of a tower. They measure the angles of elevation of the top of the tower 45° and 30° respectively. If the height of the tower is 40 m, find the distance between the men

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• The period of the function $\sin \left( \frac{\pi x}{2} \right)+\cos \left( \frac{\pi x}{2} \right)$ is

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• One root of the equation $\cos x-x+\frac{1}{2}=0$lies in the interval

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• If $(1+\tan \theta )(1+\tan \varphi )=2$, then $\theta +\varphi $=

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