sinθ + cosθ / sinθ - cosθ + sinθ - cosθ/ sinθ + cosθ = 2/(sin^2θ - cos^2θ) = 2/(2sin^2θ-1)
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The exact value of sin 180 is zero . Sine is one of the primary trigonometric functions which helps in determining the angle or sides of a right-angled triangle. It is also called trigonometric ratio. If theta is an angle, then sine theta is equal to the ratio of perpendicular and hypotenuse of the right triangle.
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