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If θ = 5π/ 4, then what's cosθ and sinθ

If θ = 5π/ 4, then what's cosθ and sinθ
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If θ = 5π/ 4, then what's cosθ and sinθ

User Jccampanero
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Hello,

cos (5π/4)=-cos(π/4)=-√2 / 2
sin (5π/4)=-sin(π/4)=-√2 / 2
User Jimmithy
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