Ask Question
3 October, 09:29

How do you find sin20°cos40°+cos20°sin40°

+1
Answers (1)
  1. 3 October, 12:56
    0
    That's of course the sum angle formula for sine

    sin (a+b) = sin a cos b + cos a sin b

    We have a=20° b=40°

    sin 20° cos 40° + cos 20° sin 40°

    = sin (20°+40°)

    = sin (60°)

    = √3/2

    Answer: √3/2
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “How do you find sin20°cos40°+cos20°sin40° ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers