Express \(2\cos \theta -5\sin \theta \)in the form of \(R\cos \left( \theta +\alpha \right)\) where \(\alpha \) is in radians.
Video solution locked
A free account saves your progress; this video needs tuition enrolment.
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.
Create a free account to practise similar questions.
Need help? Join our JC Math tuition classes.
Learn more