OpenStax, Algebra and Trigonometry 2e §9.5 Solving Trigonometric Equations · Exercise 190 · Trigonometry · Identities
Solving Trigonometric Equations · Exercise 190
Prove the identity.
A spring attached to a ceiling is pulled down 20 cm. After 3 seconds, wherein it completes 6 full periods, the amplitude is only 15 cm. Find the function modeling the position of the spring seconds after being released. At what time will the spring come to rest? In this case, use 1 cm amplitude as rest.
OpenStax, Algebra and Trigonometry 2e · §9.5 Solving Trigonometric Equations · Exercise 190
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