5. Inverse Trigonometric Functions and Basic Trigonometric Equations

In Exercises 29–51, find the exact value of each expression. Do not use a calculator.cos⁻¹ (− 1/2)

In Exercises 27–38, use a calculator to find the value of each expression rounded to two decimal places._cos⁻¹ √5/7

In Exercises 27–38, use a calculator to find the value of each expression rounded to two decimal places.tan⁻¹ (−20)

In Exercises 29–51, find the exact value of each expression. Do not use a calculator.sec⁻¹ (−1)

In Exercises 27–38, use a calculator to find the value of each expression rounded to two decimal places.___tan⁻¹ (−√473)

In Exercises 29–51, find the exact value of each expression. Do not use a calculator._cos(sin⁻¹ √2/2)

In Exercises 29–51, find the exact value of each expression. Do not use a calculator._csc(tan⁻¹ √3/3)

In Exercises 39–54, find the exact value of each expression, if possible. Do not use a calculator.sin⁻¹ (sin 5π/6)

In Exercises 29–51, find the exact value of each expression. Do not use a calculator.sin(cos⁻¹ 3/5)

In Exercises 29–51, find the exact value of each expression. Do not use a calculator.tan [cos⁻¹ (− 4/5)]

In Exercises 39–54, find the exact value of each expression, if possible. Do not use a calculator.tan⁻¹ [tan(− π/6)]

In Exercises 29–51, find the exact value of each expression. Do not use a calculator.sin⁻¹(sin π/3)

In Exercises 39–54, find the exact value of each expression, if possible. Do not use a calculator.tan⁻¹ (tan 2π/3)

In Exercises 29–51, find the exact value of each expression. Do not use a calculator.sin⁻¹(cos 2π/3)

In Exercises 39–54, find the exact value of each expression, if possible. Do not use a calculator.sin⁻¹ (sin π)