Trigonometric identities

[sumi]

Could someone show me a worked solution of this question so i can understand as i was struggling

 

[Deleted member 4993]

View attachment 24503 Could someone show me a worked solution of this question so i can understand as i was struggling

Have you studied unit circle and trigonometric representations?

Please show us what you have tried and exactly where you are stuck.

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Please share your work/thoughts about this problem.

 

[Dr.Peterson]

View attachment 24503 Could someone show me a worked solution of this question so i can understand as i was struggling

Your textbook probably has worked examples very much like this; it's just about the simplest kind they could give you. If you can't find one, here are a couple places to find some:

• https://tutorial.math.lamar.edu/classes/calci/TrigEquations.aspx
• http://www.sosmath.com/algebra/solve/solve0/solvtrig.html
• https://math.libretexts.org/Bookshe...uations/7.05:_Solving_Trigonometric_Equations

A couple of these even come very close to solving your very problem.

 

[pka]

View attachment 24503 Could someone show me a worked solution of this question so i can understand as i was struggling

I can tell you that \(\alpha=-\dfrac{\pi}{3}\) is a solution.
Can you change that into a value that you need?