Trigonometry Examples

$\sec (\frac{3 π}{10})$

Step 1

Replace $\sec (\frac{3 π}{10})$ with an equivalent expression $\frac{1}{\cos (\frac{3 π}{10})}$ using the fundamental identities.

$\frac{1}{\cos (\frac{3 π}{10})}$

Step 2

Simplify.

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Step 2.1

Convert from $\frac{1}{\cos (\frac{3 π}{10})}$ to $\sec (\frac{3 π}{10})$ .

$\sec (\frac{3 π}{10})$

Step 2.2

Evaluate $\sec (\frac{3 π}{10})$ .

$1.70130161$