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Big Ideas Math Geometry, 2014

BI

Big Ideas Math Geometry, 2014 View details

5. The Sine and Cosine Ratios

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Exercise 9 Page 498

We want to write

sin 3 7^{\circ}

in terms of cosine. To do so, let's recall an important property of the sine and cosine of complementary angles.

Subchapter links

Communicate Your Answer p.493

Monitoring Progress p.495-497