trigonometry

Related Questions

• $2{{\cos }^{2}}\theta -2{{\sin }^{2}}\theta =1$,then $\theta =$

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• If n is any integer, then the general solution of the equation $\cos x-\sin x=\frac{1}{\sqrt{2}}$ is

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• If $1+\cot \theta =\text{cosec}\theta $, then the general value of $\theta $ is

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• The two adjacent sides of a cyclic quadrilateral are 2 and 5 and the angle between them is ${{60}^{o}}$. If the third side is 3, the remaining fourth side is

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• The value of $\cos 52{}^\circ +\cos 68{}^\circ +\cos 172{}^\circ $ is

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