trigonometry

Related Questions

• If in a triangle ABC side $a=(\sqrt{3}+1)$ cms and $\angle B={{30}^{o}},$ $\angle C={{45}^{o}}$ , then the area of the triangle is

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

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• $\tan \frac{A}{2}$is equal to

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• If $\cos \theta =\frac{1}{2}\left( x+\frac{1}{x} \right)$, then $\frac{1}{2}\left( {{x}^{2}}+\frac{1}{{{x}^{2}}} \right)=$

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• In any triangle ABC ,${{\sin }^{2}}\frac{A}{2}+{{\sin }^{2}}\frac{B}{2}+{{\sin }^{2}}\frac{C}{2}$ is equal to

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