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Home > PC > Chapter 4 > Lesson 4.1.3 > Problem 4-39


Reminder: is usually written as . However, the first form must be used on your calculator. Also, means to square first and then take the sine. If and , find the following values or state “impossible without a calculator.”

Compute without a calculator

  1. This is :

  1. This is the same as (a) above.

  1. This is impossible because is unknown.