trigonometry

Related Questions

• The equation ${{(a+b)}^{2}}=4ab{{\sin }^{2}}\theta $is possible only when

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• If $A=130{}^\circ $and $x=\sin A+\cos A,$then

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• If $x+y+z={{180}^{o}},$ then $\cos 2x+\cos 2y-\cos 2z$ is equal to

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• General solution of the equation $\cot \theta -\tan \theta =2$is

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• If $x{{\sin }^{3}}\alpha +y{{\cos }^{3}}\alpha =\sin \alpha \cos \alpha $ and $x\sin \alpha -y\cos \alpha =0,$ then ${{x}^{2}}+{{y}^{2}}=$

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