trigonometry

Related Questions

• If in triangle $ABC,\cos A=\frac{\sin B}{2\sin C}$ , then the triangle is

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• If in a triangle ABC the sides $AB$ and AC are perpendicular, then the true equation is

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• The value of $\frac{\cot 54{}^\circ }{\tan 36{}^\circ }+\frac{\tan 20{}^\circ }{\cot 70{}^\circ }$ is

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• $\tan 20{}^\circ +\tan 40{}^\circ +\sqrt{3}\tan 20{}^\circ \tan 40{}^\circ =$

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• If the angle of depression of a point A on the ground from the top of a tower be 30°, then the angle of elevation of the top of the tower from the point A will be

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