Unit 7 Review - Algebra 2

Fill in the blank: According to the Law of Sines, ___ .

Fill in the blank: The reciprocal identity for sine is ___ .

Fill in the blank: The reciprocal identity for cosine is ___ .

Fill in the blank: The reciprocal identity for tangent is ___ .

Fill in the blank: The quotient identity for tangent is ___ .

Fill in the blank: The Pythagorean identity is ___ .

Fill in the blank: The sum of angles identity for sine is ___ .

Fill in the blank: The double-angle identity for sine is ___ .

Fill in the blank: The half-angle identity for sine is ___ .

Find each missing side. Give your answer in simplest radical form. (30°-60°-90° triangle with shorter leg 10, longer leg x, hypotenuse y)

• x = 10√3, y = 15√2

• x = 10√2, y = 20

• x = 5√3, y = 10√2

• x = 10√3, y = 20