trigonometry

Related Questions

• If $\tan \frac{A}{2}=\frac{3}{2},$then $\frac{1+\cos A}{1-\cos A}=$

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• Period of cot $3x-\cos (4x+3)$ is

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• A tower subtends an angle $\alpha$ at a point A in the plane of its base and the angle of depression of the foot of the tower at a point l meters just above A is $\beta$. The height of the tower is

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• If ${{p}_{1}},{{p}_{2}},{{p}_{3}}$ are altitudes of a triangle $ABC$ from the vertices $A,B,C$ and $\Delta $ the area of the triangle, then $p_{1}^{-2}+p_{2}^{-2}+p_{3}^{-2}$ is equal to

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• The inradius of the triangle whose sides are 3, 5, 6, is

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