trigonometry

Related Questions

• Given that $\pi <\alpha <\frac{3\pi }{2},$ then the expression $\sqrt{(4{{\sin }^{4}}\alpha +{{\sin }^{2}}2\alpha )}+4{{\cos }^{2}}\left( \frac{\pi }{4}-\frac{\alpha }{2} \right)$ 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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• If ${{\sec }^{2}}\theta =\frac{4}{3}$, then the general value of $\theta $is

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• If $\tan \theta =\frac{20}{21}$, $\cos \theta$ will be

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• In triangle ABC and DEF, AB = DE, AC = EF and $\angle A=2\angle E$. Two triangles will have the same area, if angle A is equal to

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