question_answer

Find the value of the expression given below:

\[\frac{\mathbf{1}}{\mathbf{8}}\mathbf{cose}{{\mathbf{c}}^{\mathbf{2}}}\mathbf{(5}{{\mathbf{2}}^{\mathbf{o}}}\mathbf{-}\theta \mathbf{)-}\frac{\mathbf{1}}{\mathbf{4}}\mathbf{ta}{{\mathbf{n}}^{\mathbf{2}}}\]\[\mathbf{(3}{{\mathbf{8}}^{\mathbf{o}}}\mathbf{+}\theta \mathbf{)+}\frac{\mathbf{7}}{\mathbf{8}}\mathbf{se}{{\mathbf{c}}^{\mathbf{2}}}\mathbf{(3}{{\mathbf{8}}^{\mathbf{o}}}\mathbf{+}\theta \mathbf{)-}\frac{\mathbf{3}}{\mathbf{4}}\mathbf{co}{{\mathbf{t}}^{\mathbf{2}}}\mathbf{(5}{{\mathbf{2}}^{\mathbf{o}}}-\theta )\]

A)  0        

B)                     1

C)  \[-\,1\]                                                             

D) 2

E) None of these