Mathematics, 20.11.2020 19:10, kaylailkanic1487

Let |r| = 17 at an angle of 40° and |s| = 14 at an angle of 160°. Which expression represents |r + s|? StartRoot 17 squared + 14 squared minus 2 (17) (14) cosine (40 degrees) EndRoot
StartRoot 17 squared + 14 squared minus 2 (17) (14) cosine (60 degrees) EndRoot
StartRoot 17 squared + 14 squared minus 2 (17) (14) cosine (10 degrees) EndRoot
StartRoot 17 squared + 14 squared minus 2 (17) (14) cosine (120 degrees) EndRoot

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Let |r| = 17 at an angle of 40° and |s| = 14 at an angle of 160°. Which expression represents |r + s...