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TRIGONOMETRY

Posted by : Allan_Dell on Wednesday, January 16, 2013 | 9:52 PM

TRIGONOMETRY:

The right Triangle

- right triangle is a triangle with one angle measures 900.
- a geometrical figure with three sides with two rays measures 900 for an angle.
- a triangle that contains ninety degree angle and no equal sides except for the isosceles right triangle whose two legs are equal.

Illustration:








The six Trigonometric functions of angle A

Sine A = opposite/ hypotenuse = o / h

Cosine A = adjacent/ hypotenuse = a / h

Tangent A = opposite/adjacent = o / a

Cotangent A = adjacent/ opposite = a / o

Secant A = hypotenuse/ adjacent = h / a

Cosecant  A = hypotenuse/ opposite = h / o





















































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