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Trigonometric Identities and Equations

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Question 12
a.

Solve, for 360≤θ<720∘360 \leq \theta < 720^\circ360≤θ<720∘, the equation,

3cos⁡θ=8tan⁡θ 3 \cos \theta = 8 \tan \theta 3cosθ=8tanθ
[5]
b.

The first four positive solutions, in order of size, of the equation cos⁡(2a+50)=0.7\cos(2a + 50) = 0.7cos(2a+50)=0.7 are a1,a2,a3 a_1, a_2, a_3\,a1​,a2​,a3​ and a4a_4a4​. To the nearest degree find the value of a4a_4a4​.

[3]

Trigonometric Identities and Equations Questions

  1. AS Level
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  3. /Trigonometric Identities and Equations