trigonometry

Related Questions

• If $\cos \theta =-\frac{1}{\sqrt{2}}$and $\tan \theta =1$, then the general value of $\theta $is

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• The value of $\cot {{70}^{o}}+4\cos {{70}^{o}}$ 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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• If $x,\,y,\,z$are perpendicular drawn $a,\,b$ and $c$, then the value of $\frac{bx}{c}+\frac{cy}{a}+\frac{az}{b}$will be

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• $ABC$ is a right angled isosceles triangle with $\angle B={{90}^{o}}$. If D is a point on $AB$ so that $\angle DCB={{15}^{o}}$ and if $AD=35cm$ , then $CD=$

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