trigonometry

Related Questions

• If $\tan \alpha ,\tan \beta $are the roots of the equation ${{x}^{2}}+px+q=0\text{ }(p\ne 0),$ then

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• If $\sin A=\frac{4}{5}$and $\cos B=-\frac{12}{13},$where A and B lie in first and third quadrant respectively, then $\cos (A+B)=$

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• In triangle ABC, $A={{30}^{o}},b=8,a=6$ , then $B={{\sin }^{-1}}x$ , where $x =$

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• ${{\sin }^{6}}\theta +{{\cos }^{6}}\theta +3{{\sin }^{2}}\theta {{\cos }^{2}}\theta =$

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• If $\cos A=\frac{3}{4}$, then $32\sin \frac{A}{2}\cos \frac{5}{2}A=$

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