The value of -203 -205 -207 -209 -20 is

Given π203π205π207π209π20 =(π209π20)π4(3π207π20) =(π20(π2 π20))(3π20(π2 3π20)) =(π20tanπ20)(3π20tan3π20) =1 ...

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Sign of Trigonometric Ratios in Different Quadrants

The value of ...

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The value of $cot \frac{π}{20} cot \frac{3 π}{20} cot \frac{5 π}{20} cot \frac{7 π}{20} cot \frac{9 π}{20}$ is

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cot \frac{π}{20} cot \frac{3 π}{20} cot \frac{5 π}{20} cot \frac{7 π}{20} cot \frac{9 π}{20}

cot \frac{π}{20} cot \frac{3 π}{20} cot \frac{5 π}{20} cot \frac{7 π}{20} cot \frac{9 π}{20} cot \frac{15 π}{20} =

cot \frac{π}{20} cot \frac{3 π}{20} cot \frac{5 π}{20} cot \frac{7 π}{20} cot \frac{9 π}{20}

cot (\frac{π}{20}) cot (\frac{3 π}{20}) cot (\frac{5 π}{20}) cot (\frac{7 π}{20}) cot (\frac{9 π}{20})

cot \frac{π}{20} cot \frac{3 π}{20} cot \frac{7 π}{20} cot \frac{9 π}{20} cot \frac{15 π}{20} =

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