11.3 Using Trigonometric Identities
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In signal processing, the instantaneous power P P\,P of a specific modulated wave relative to its phase ϕ \phi\,ϕ is modeled by the function:

P(ϕ)=(5cos⁡ϕ−2sin⁡ϕ)2P(\phi) = (5\cos \phi - 2\sin \phi)^2P(ϕ)=(5cosϕ−2sinϕ)2

Determine the indefinite integral of the power function with respect to the phase, giving your answer in its simplest form:

∫P(ϕ) dϕ\int P(\phi) \, d\phi∫P(ϕ)dϕ

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11.3 Using Trigonometric Identities Questions

Practise Edexcel A Level Maths 11.3 Using Trigonometric Identities with exam-style questions for A Level Maths. 32 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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11.3 Using Trigonometric Identities Questions

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