Rosyid Adrianto's answer to Mmt Sinotif's Junior College 2 H3 Maths question.
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θ is obtuse , sin θ = k
(i) cos θ = −√(1 – k²)
(ii) tan θ = (sin θ) / (cos θ)
tan θ = −k / √(1 – k²)
(iii) sin (θ + π) = −k
(i) cos θ = −√(1 – k²)
(ii) tan θ = (sin θ) / (cos θ)
tan θ = −k / √(1 – k²)
(iii) sin (θ + π) = −k
Date Posted:
7 years ago
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