7. Which compound angle formula is the easiest to use to develop the expression cos²0 - sin²0? a. Addition formula for sine b. Addition formula for cosine c. Subtraction formula for sine d. Subtraction formula for cosine 8. Which of the following expressions is NOT equivalent to sin75° ? a. sin45° + sin30° b. sin(45° +30°) c. sin105° d. sin45°cos30° + sin30°cos45°

7. Which compound angle formula is the easiest to use to develop the expression cos²0 - sin²0? a. Addition formula for sine b. Addition formula for cosine c. Subtraction formula for sine d. Subtraction formula for cosine 8. Which of the following expressions is NOT equivalent to sin75° ? a. sin45° + sin30° b. sin(45° +30°) c. sin105° d. sin45°cos30° + sin30°cos45°

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter73: Achievement Review—section Seven

Section: Chapter Questions

Problem 51AR: Determine the sine, cosine, tangent, cotangent, secant, and cosecant of each of the following...

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