trigonometry

Related Questions

• Period of cot $3x-\cos (4x+3)$ is

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• A person standing on the bank of a river observes that the angle subtended by a tree on the opposite bank is 60°. When he retires 40 meters from the bank, he finds the angle to be 30°. The breadth of the river is

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• The value of $2({{\sin }^{6}}\theta +{{\cos }^{6}}\theta )-3({{\sin }^{4}}\theta +{{\cos }^{4}}\theta )+1$ is

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• The maximum value of ${{\cos }^{2}}\left( \frac{\pi }{3}-x \right)-{{\cos }^{2}}\left( \frac{\pi }{3}+x \right)$ is

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• If $A+B+C={{180}^{o}},$ then $\frac{\tan A+\tan B+\tan C}{\tan A\,.\,\tan B\,.\,\tan C}=$

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