trigonometry

Related Questions

• If $4{{\sin }^{4}}x+{{\cos }^{4}}x=1,$then $x =$

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• If in a triangle $ABC,a=5,b=4,A=\frac{\pi }{2}+B$ , then C

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• The general solution of the trigonometric equation $\tan \theta =\cot \alpha $ is

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• The solution of equation ${{\cos }^{2}}\theta +\sin \theta +1=0$ lies in the interval

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• If $\alpha ,\beta ,\gamma $ are angles of a triangle, then ${{\sin }^{2}}\alpha +{{\sin }^{2}}\beta +{{\sin }^{2}}\gamma -2\cos \alpha \cos \beta \cos \gamma $ is

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