trigonometry

Related Questions

• In a $\Delta ABC,$ if $\frac{\sin A}{\sin C}=\frac{\sin (A-B)}{\sin (B-C)},$ then ${{a}^{2}},\ {{b}^{2}},\ {{c}^{2}}$ are in

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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 radius of the circle whose arc of length $15cm$ makes an angle of 3/4 radian at the centre is

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• $\tan 20{}^\circ \tan 40{}^\circ \tan 60{}^\circ \tan 80{}^\circ =$

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• $\tan 15{}^\circ =$

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