$\mathrm{A}=\cos \theta$ এবং $\mathrm{B}=\sin \theta$

$\mathrm{P}=\cot \theta, \mathrm{Q}=\operatorname{cosec} \theta$ এবং $\mathrm{R}=\cos \theta$.

$\Delta \mathrm{A}=\tan \theta+\sec \theta$.

$\ {\cot \theta+\operatorname{cosec} \theta=P এবং\mathrm{x} \cos A-y \sin A=z}$