Trigonometry Formulas - Description
Dear readers, here we are offering Trigonometry Formulas PDF to all of you. Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles. Trigonometry Formulas will help you to solve many questions related to this topic.
Every student must learn and remember these Trigonometry formulas to score desired scores in their examination. Apart from college exams, these formulas are also important for various competitive and government examinations. You can save this pdf to practice the questions.
Basic Trigonometric Function Formulas PDF
There are basically 6 ratios used for finding the elements in Trigonometry. They are called trigonometric functions. The six trigonometric functions are sine, cosine, secant, co-secant, tangent, and co-tangent.
By using a right-angled triangle as a reference, the trigonometric functions and identities are derived:
- sin θ = Opposite Side/Hypotenuse
- cos θ = Adjacent Side/Hypotenuse
- tan θ = Opposite Side/Adjacent Side
- sec θ = Hypotenuse/Adjacent Side
- cosec θ = Hypotenuse/Opposite Side
- cot θ = Adjacent Side/Opposite Side
The Reciprocal Identities are given as:
- cosec θ = 1/sin θ
- sec θ = 1/cos θ
- cot θ = 1/tan θ
- sin θ = 1/cosec θ
- cos θ = 1/sec θ
- tan θ = 1/cot θ
All these are taken from a right-angled triangle. When the height and base side of the right triangle are known, we can find out the sine, cosine, tangent, secant, cosecant, and cotangent values using trigonometric formulas. The reciprocal trigonometric identities are also derived by using the trigonometric functions.
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