Solutions to “You’ve Got Problems”

All the answers to the problems that you found in the “You’ve Got Problems” sidebars throughout the book are listed here, organized by chapter.

Chapter 1

1. Using the relationship that 180° corresponds to π radians, set up the proportion to arrive at .

2. You know that sin(2A) = 2sin(A)cos(A). Use the Pythagorean identity sin2(A) + cos2(A) = 1 to solve for the value of becomes so and . Therefore, ...

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