trigonometry

Related Questions

• The value of $\sin {{47}^{o}}+\sin 61{}^\circ -\sin 11{}^\circ -\sin 25{}^\circ =$

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• If $A+B+C=\pi ,$ then ${{\tan }^{2}}\frac{A}{2}+{{\tan }^{2}}\frac{B}{2}+$${{\tan }^{2}}\frac{C}{2}$ is always

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• If $b=3,c=4$ and $B=\frac{\pi }{3}$ , then the number of triangle that can be constructed is

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• In a triangle $ABC$ , if $B=3C$ , then the values of $\sqrt{\left( \frac{b+c}{4c} \right)}$ and $\left( \frac{b-c}{2c} \right)$ are

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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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