trigonometry

Related Questions

• In any $\Delta ABC$ if $a\cos B=b\cos A$ , then the triangle is

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• In a triangle $ABC,\,\,b=\sqrt{3}$ , $c=1$ and $\angle A={{30}^{o}}$ , then the largest angle of the triangle is

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• If $\sin \theta =\frac{24}{25}$and $\theta $ lies in the second quadrant, then $\sec \theta +\tan \theta =$

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• In a triangle $ABC$ , $AD$ is altitude from A. Given $b>c,$ $\angle C={{23}^{o}}$ and $AD=\frac{abc}{{{b}^{2}}-{{c}^{2}}},$ then $\angle B=$

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• ${{\cos }^{2}}\alpha +{{\cos }^{2}}(\alpha +120{}^\circ )+{{\cos }^{2}}(\alpha -120{}^\circ )$ is equal to

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