Why is cos(180 - theta) = -cos(theta) and sin(180 - theta) = sin(theta)?

Graph to show that sin(180+x) = -sin x

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prove sin(180 - theta) = sin theta

Sin 180-Theta || Sin 180 Minus Theta || Sin 180-Theta Barabar || Sin(180°-θ) || Trigonometry

Why sin (180°+x)= -sinx || basic maths for all competitive exams || #shorts #saiclasses

Why sin(180 + theta) is sin theta

Why does cos(t)=x and sin(t)=y?

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trigonometry class 11 basics formula ll why sin(180-θ) = sinθ, cos(180-θ) = -cosθ, tan(180-θ) = tanθ

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Simplify trig expression tan(180+x) sin(90 +x) + sin(180+x) cot(-x). Reference angles

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Further Trigonometry. Sin(180 - A)=Sin A , Cos(180 - A)= - Cos A , and Tan(180 - A) = - Tan A

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Trigonometric Ratios l Sin(90-theta), Sin(90+theta), Sin(180-theta), Sin(180+theta) | CAST Diagram