Question

if sin theatha =1/root3then cos 2 thetha ​

Answer 1

Answer:

sin∅ = 1/√3

sin²∅ = 1/3

1- cos²∅ = 1/3

cos²∅ = 1 - 1/3

cos²∅ = 2/3

hope this will help you

Answer 2

This is ur answer buddy ❤️