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Natural Trigonometric Functions
Sine, Cosine and Tangent - Natural Trigonometric Functions
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Natural trigonometric functions are expressed as
sin θ = cos (π / 2 - θ) (1)
cos θ = sin (π / 2 - θ) (2)
tan θ = sin θ / cos θ = 1 / cot θ = cot (π / 2 - θ) (3)
cot = 1 / tan θ = cos θ / sin θ = tan(π / 2 - θ) (4)
Trigonometric functions ranging 0 to 90 degrees are tabulated below:
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