20 Additional Topics in Trigonometry


After completion of this chapter, the student should be able to:

  • Recognize the basic trigonometric identities and use them to prove other trigonometric identities and simplify trigonometric expressions

  • Recognize and apply the formulas for trignonometric functions of sums and differences of angles as well as half and double angles

  • Solve trigonometric equations

  • Evaluate inverse trignonometric functions

  • Find algebraic expressions for expressions involving inverse trigonometric functions

  • Solve application problems involving trigonometric identities and inverse trigonometric functions

As the use of electricity became widespread in the 1880s, there was a serious debate over the best way to ...

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