More Lessons for A Level Maths

Math Worksheets

Videos, activities and worksheets that are suitable for A Level Maths.

Proof of A sin x + B cos x = R sin (x + alpha)

In this tutorial you are shown how to prove the above trig. identity.

In this tutorial you are shown how to prove the above trig. identity.

In this tutorial you are shown how to prove the above trig. identity.

In this tutorial you are shown how to prove the above trig. identity.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.