trigonometry

Related Questions

• The value of $\sin 10{}^\circ +\sin 20{}^\circ +\sin 30{}^\circ +...+$ $\sin 360{}^\circ $ is

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• $\frac{\sin \theta }{1-\cot \theta }+\frac{\cos \theta }{1-\tan \theta }=$

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• 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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• If ${{c}^{2}}={{a}^{2}}+{{b}^{2}}$ , then $4s(s-a)(s-b)(s-c)=$

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• If $4{{\sin }^{2}}\theta +2(\sqrt{3}+1)\cos \theta =4+\sqrt{3}$, then the general value of $\theta $is

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