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Cosine Rule Modules

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CALCULATOR MODULE : Maths Trigonometry   ±

Calculate the maths trigonometric functions (sin, cos, tan, cosec, sec and cot), and the inverse trigonometric functions (asin, acos, atan, acosec, asec, and acot).

The trigonometric fuctions are circular functions calculated for a right angle triangle with a hypotenuse equals 1 and angle θ. The base length of the triangle = cos(θ). The height of the triangle equals sin(θ). The slope of the hypotenuse equals tan(θ), equals sin(θ) / cos(θ). From Pythagorus' formula cos(θ)^2 + sin(θ)^2 = 1. The functions cosec (1/sin), sec (1/cos) and cot (1/tan) were mainly used for navigation.

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CALCULATOR MODULE : Maths Right Angle Triangle (Pythagorus)   ±

Calculate maths triangle sides, heights and angles for a right angled triangle.

The area is calculated from the base and height. Angles, sides and heights can be calculated using cos, sin, tan, and Pythagorus theorem.

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CALCULATOR MODULE : Maths Scalene Triangle (Three Unequal Sides)   ±

Calculate maths triangle sides, heights and angles for a scalene triangle.

Scalene triangles have three unequal sides, and three unequal angles. The area is calculated from the base and height. Angles, sides and heights can be calculated using the sin rule and the cosine rule.

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CALCULATOR MODULE : Maths Equilateral Triangle (Three Equal Sides)   ±

Calculate maths triangle sides, heights and angles for an equilateral triangle.

Equilateral triangles have three equal sides, and three equal angles (60 degrees). The area is calculated from the base and height.

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CALCULATOR MODULE : Maths Isoceles Triangle (Two Equal Sides)   ±

Calculate maths triangle sides, heights and angles for an isoceles triangle.

Isoceles triangles have two equal sides, and two ewqqual angles. The area is calculated from the base and height. The sides and angles can be calculated using the sin rule and the cosine rule.

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CALCULATOR MODULE : Maths Hyperbolic Functions   ±

Calculate maths hyperbolic functions (sinh, cosh, tanh, csch (1/sinh), sech (1/cosh), and coth (1/tanh)), and hyperbolic inverse functions (asinh, acosh, atanh, asch, asech, acoth).

The hyperbolic functions are defined as

`cosh(x) = (e^x + e^-x) / 2 `
`sinh(x) = (e^x - e^-x) / 2 `
`tanh(x) = sinh(x) / cosh(x) `
`cosh(x)^2 - sinh(x)^2 = 1`

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