a) Solve the equation 4 sinx 7 cos x 7 for 0 x 360 b) Hence solve the equation 4 sin( 20) 7 cos ( 20) 7 for 0 360 ...

a We can use the identity cosx sinx 1 to write sinx 1 cosx Substituting into the equation and rearra ...

a) Solve the equation 4 sinx + 7 cos x = 7 for 0 x

Question:

a) Solve the equation 4 sin²x + 7 cos x = 7 for 0° ≤ x ≤ 360°.

b) Hence solve the equation 4 sin²(θ + 20)° +7 cos (θ + 20)° = 7 for 0° ≤ θ ≤ 360°.

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Complete Pure Mathematics 1 For Cambridge International AS & A Level

ISBN: 9780198427438

2nd Edition

Authors: Jean Linsky, Brian Western, James Nicholson

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Question Posted: Apr 14, 2023 11:28 AM

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a) Solve the equation 4 sinx + 7 cos x = 7 for 0 x

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a We can use the identity cosx sinx 1 to write sinx 1 cosx Substituting into the equation and rearra...View the full answer

Complete Pure Mathematics 1 For Cambridge International AS & A Level

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