Write the expression in terms of the appropriate cofunction.cos⁡(19π45)\cos\left(\frac{19\pi}{45}\right)cos(4519π)

sin ⁡ ( 7 π 90 ) \sin\left(\frac{7\pi}{90}\right) sin ( 90 7 π )

8. Trigonometric Functions on Right Triangles

Cofunctions of Complementary Angles

Multiple Choice

Write the expression in terms of the appropriate cofunction.
$\cos\left(\frac{19\pi}{45}\right)$

$\cos\left(\frac{7\pi}{90}\right)$

$\sin\left(\frac{4031\pi}{45}\right)$

$\sin\left(\frac{7\pi}{90}\right)$

$\cos\left(\frac{4031\pi}{90}\right)$

views

Related Videos

Related Practice

Showing 1 of 2 videos