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Home > PC3 > Chapter 2 > Lesson 2.2.1 > Problem 2-55


Compute without a calculatorReminder: is usually written as . Also, means to square first and then take the sine. If and , evaluate the following expressions or state “impossible without a calculator.” 

  1. This expression is another way to write the expression given in part (a).

  1. The value of needs to be determined first, then squared.