A2 Maths: Trigonometry: Harmonic Form

In Part 4 of the A level trigonometry series, We look at harmonic form and how you can convert equations into harmonic form, and use it to find the maximum and minimum values of the curve.

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[zigbo]

Thank you for the recap. In a question I had encountered, the answer shoed that I had to add π to the alpha angle in my final answer

[SlowZy-ycto]

Could you do one with cosine graph instead of sine? What is the difference

[bereketmehari]

It's a very nice tutorial. but why don't you just use the amplitude(the coefficient) to find the max and min instead of going through this long process..