Consider the following simultaneous equations:
3 cos^2 𝛼 + 2 cos^2 𝛽 =4
3 sin^2 𝛼 − 2sin^2 𝛽=0
*Find the values of cos 2𝛼 and cos 2𝛽.
*Hence solve for 𝛼 and 𝛽. Where 0°≤𝛼≤360° and 0°≤𝛽≤360°.
Once is enough, thank you.
Repeated postings will not get faster or better responses.