\begin{array} { l } { \text { Evaluate without using trigonometric tables: } } \\ { \frac { 3 \cos 55 ^ { \circ } } { 7 \sin 35 ^ { \circ } } - \frac { 4 \left( \cos 70 ^ { \circ } \csc 20 ^ { \circ } \right) } { 7 \left( \tan 5 ^ { \circ } \tan 25 ^ { \circ } \tan 45 ^ { \circ } \tan 65 ^ { \circ } \tan 85 ^ { \circ } \right) } } \end{array}

\begin{array} { l } { \text { Evaluate without using trigonometric tab

1.	\begin{array} { l } { \text { Evaluate without using trigonometric tables: } } \\ { \frac { 3 \cos 55 ^ { \circ } } { 7 \sin 35 ^ { \circ } } - \frac { 4 \left( \cos 70 ^ { \circ } \csc 20 ^ { \circ } \right) } { 7 \left( \tan 5 ^ { \circ } \tan 25 ^ { \circ } \tan 45 ^ { \circ } \tan 65 ^ { \circ } \tan 85 ^ { \circ } \right) } } \end{array}
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