Here

Use a calculator to find the value of the given trigonometric function up-to four decimal places.

\(\displaystyle{\sin{{\left(\frac{{{3}\pi}}{{10}}\right)}}}={0.8090}\)

Hence, the value of the given trigonometric function up to four decimal places is 0.8090

Use a calculator to find the value of the given trigonometric function up-to four decimal places.

\(\displaystyle{\sin{{\left(\frac{{{3}\pi}}{{10}}\right)}}}={0.8090}\)

Hence, the value of the given trigonometric function up to four decimal places is 0.8090