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Trigonometric Identities and Equations

Trigonometric Identities and Equations

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Question 38
a.

Solve the equation sin⁡2x=tan⁡2x\sin^2 x = \tan^2 xsin2x=tan2x for 0∘≤x≤180∘0^\circ \leq x \leq 180^\circ0∘≤x≤180∘

[5]
b.

Prove that 2sin⁡x−cos⁡2x+12+sin⁡x≡sin⁡x\displaystyle \frac{2 \sin x - \cos^2 x + 1}{2 + \sin x} \equiv \sin x2+sinx2sinx−cos2x+1​≡sinx

[3]
Markscheme

Trigonometric Identities and Equations Questions

  1. A Level
  2. /Maths
  3. /Trigonometric Identities and Equations

41 exam-style questions on Edexcel A Level Maths Trigonometric Identities and Equations, covering 10.1 Angles in all four Quadrants, 10.2 Exact Values of Trigonometric Ratios, 10.3 Trigonometric Identities, 10.4 Solving Trigonometric Equations, 10.5 Harder Trigonometric Equations, and 10.6 Equations and Identities. Each one has a worked solution and a mark scheme showing where the marks go.

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