trigonometry

Related Questions

• If the sides of triangle are 13, 14, 15, then the radius of its incircle is

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• $ABCD$ is a rectangular field. A vertical lamp post of height 12m stands at the corner A. If the angle of elevation of its top from B is ${{60}^{o}}$ and from C is ${{45}^{o}}$, then the area of the field is

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• The value of $\theta $lying between 0 and $\pi /2$and satisfying the equation $\begin{vmatrix} {1 + {{\sin }^2}\theta }&{{{\cos }^2}\theta }&{4\sin 4\theta }\\ {{{\sin }^2}\theta }&{1 + {{\cos }^2}\theta }&{4\sin 4\theta }\\ {{{\sin }^2}\theta }&{{{\cos }^2}\theta }&{1 + 4\sin 4\theta } \end{vmatrix} =0$

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• In a triangle $\tan A+\tan B+\tan C=6$ and $\tan A\tan B=2,$then the values of $\tan A,\,\,\tan B$ and $\tan C$ are

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• In$\Delta \,ABC$ ,$({{b}^{2}}-{{c}^{2}})\cot A+({{c}^{2}}-{{a}^{2}})\cot B+({{a}^{2}}-{{b}^{2}})\cot C=$

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