Cofunction

Geometry Level pending

Rewrite sec ⁡ π 10 \sec \frac{\pi}{10} in terms of its cofunction.

c s c csc 2 5 π \dfrac{2}{5\pi} c s c csc 2 π 5 \dfrac{2\pi}{5} c s c csc 5 π 2 \dfrac{5\pi}{2} c s c csc 10 π \dfrac{10}{\pi}

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1 solution

s e c sec π 10 = \frac{π}{10} = c s c csc ( π 2 − π 10 ) = (\frac{π}{2} - \frac{π}{10}) = 2 π 5 \frac{2π}{5}

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