UPSKILL MATH PLUS

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18. Evaluate the given expression

Answer variants:

3

\frac{2}{\sqrt{3}}

\frac{1}{\sqrt{2}}

The value of \(\sin 19^{\circ} \sin 52^{\circ} \sin 45^{\circ} \sec 71^{\circ} \sec 38^{\circ}\) is

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