1.

If \(6\left( {sec^259^\circ - cot^231^\circ} \right) + \frac{2}{3}sin90^\circ - 3tan^256^\circ \;ytan^234^\circ = \frac{y}{3},\) then the value of y is:

A. 2
B. -23
C. -2
D. 23
Answer» B. -23


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