Ask Question
28 February, 20:38

Solve the given equation. (enter your answers as a comma-separated list. let k be any integer. round terms to three decimal places where appropriate. if there is no solution, enter no solution.) 5 sin 2θ - 7 sin θ = 0

+4
Answers (1)
  1. 28 February, 21:04
    0
    5 sin 2θ - 7 sin θ = 0

    we know sin 2θ = 2sinθcosθ

    5 (2sinθcosθ) - 7sinθ = 0

    sinθ (10cosθ - 7) = 0

    sinθ = 0

    θ = 2k*pi, pi + 2k*pi

    cosθ = 0.7

    θ = cos^-1 (0.7) = 2k*pi + cos^-1 (0.7)

    θ = 2k*pi + cos^-1 (0.7)

    θ = 2k*pi - cos^-1 (0.7)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Solve the given equation. (enter your answers as a comma-separated list. let k be any integer. round terms to three decimal places where ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers