Asked by Sandy
                sin(270 degrees - theta) = -cos(theta)
            
            
        Answers
                    Answered by
            MathMate
            
    Prove the following identity:
sin(270 degrees - theta) = -cos(theta)
sin(270 degrees - theta)
= sin(270°)cos(θ) - cos(270°)sin(θ)
=(-1)cos(θ) - (0)sin(θ)
= -cos(θ)
Please post the complete question. It was not clear whether it was an equation to be solved or the proof of an identity required.
    
sin(270 degrees - theta) = -cos(theta)
sin(270 degrees - theta)
= sin(270°)cos(θ) - cos(270°)sin(θ)
=(-1)cos(θ) - (0)sin(θ)
= -cos(θ)
Please post the complete question. It was not clear whether it was an equation to be solved or the proof of an identity required.
                    Answered by
            Sandy
            
    *verify that it is an identity
    
                    Answered by
            MathMate
            
    That's what I thought.  Thank you for posting a complete question.
    
                                                    There are no AI answers yet. The ability to request AI answers is coming soon!
                                            
                Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.