2. Verify the identity secx - cos x = sin x tan x 3. Find the exact value of sin(2) using the sum and difference formulas. 4. Find the exact value of sin(80°) cos(35°) - cos(80°) sin(35°) 5. Prove the identity 1 + cos2x + 2 sin²x = 2
2. Verify the identity secx - cos x = sin x tan x 3. Find the exact value of sin(2) using the sum and difference formulas. 4. Find the exact value of sin(80°) cos(35°) - cos(80°) sin(35°) 5. Prove the identity 1 + cos2x + 2 sin²x = 2
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter77: Machining Compound-angular Surfaces
Section: Chapter Questions
Problem 5A
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