Find sin(7pie/4) using exact values

Mathematics

1 answer:

rewona [7]3 years ago

3 0

$sin( \frac{ 7\pi }{4} )=-sin(2 \pi - \frac{ 7\pi }{4} )=-sin \frac{ \pi }{4} =- \frac{1}{ \sqrt{2} }$

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