trigonometry

Related Questions

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

  ---

• If $\sin \theta +\cos \theta =x,$ then ${{\sin }^{6}}\theta +{{\cos }^{6}}\theta =\frac{1}{4}[4-3{{({{x}^{2}}-1)}^{2}}]$ for

  ---

• In a triangle $ABC,\,\,b=\sqrt{3}$ , $c=1$ and $\angle A={{30}^{o}}$ , then the largest angle of the triangle is

  ---

• The value of $\theta $lying between 0 and $\pi /2$and satisfying the equation $\begin{vmatrix} {1 + {{\sin }^2}\theta }&{{{\cos }^2}\theta }&{4\sin 4\theta }\\ {{{\sin }^2}\theta }&{1 + {{\cos }^2}\theta }&{4\sin 4\theta }\\ {{{\sin }^2}\theta }&{{{\cos }^2}\theta }&{1 + 4\sin 4\theta } \end{vmatrix} =0$

  ---

• $\frac{\cos {{10}^{o}}+\sin {{10}^{o}}}{\cos {{10}^{o}}-\sin {{10}^{o}}}=$

  ---