2. Trigonometric Functions on Right Triangles

Write the expression in terms of the appropriate cofunction.

$\(\cos\[\left\)(\(\frac{19\pi}{45}\]\right\))$

Write the expression in terms of the appropriate cofunction.

$\(\cot\[\left\)(25\(\degree\]\right\))$

Find the acute angle solution to the following equation involving cofunctions. $\(\theta\)$ is in degrees.

$\(\cos\[\left\)(2\(\theta\)+15\(\right\))=\(\sin\]\left\)(5\(\theta\)+12\(\right\))$

Find the acute angle solution to the following equation involving cofunctions. P is in degrees.

$\(\sec\]\left\)(\(\frac{4P}{5}\)+20\(\right\))=\(\csc\[\left\)(\(\frac{5P}{8}\)+\(\frac{223}{4}\]\right\))$

Find a cofunction with the same value as the given expression.

sin 19°

Find a cofunction with the same value as the given expression.

csc 35°

Find a cofunction with the same value as the given expression.

tan (𝜋/7)

Find a cofunction with the same value as the given expression.

cos (3𝜋/8)