Trigonometry Formulas List PDF – Looking for Trigonometry Formulas List to solve questions? So you are in right place. We have provided the trigonometry formulas list. Here you can download the Trigonometry Formulas List PDF by using the direct download link given at the bottom of this article. If you are a competitive exam aspirant and a school and college-going student, then this trigonometry formulas list will be helpful for the upcoming exam preparation.

### Trigonometry Formulas

The founder of trigonometry is Hipparchus, a Greek astronomer, and mathematician. Trigonometry is a branch of mathematics that studies the relationship between the lengths of the sides and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BCE, from applications of geometry to astronomical studies.

Trigonometry Formulas can solve different types of problems. These problems may include trigonometric ratios (sin, cos, tan, sec, cosec, and cot), Pythagorean identities, product identities, etc.

### Benefits of Trigonometry Formulas

Mathematics is one of the most common sections that are included In every competitive exam, and Trigonometry is part of mathematics. For aspirants who are really looking to increase their score in the Trigonometry part, we are sure this list of Trigonometry Formulas is going to be helpful for your examination like UPSC, NDA, Banking SSC, CGL, CHSL, MTS, CPO, Railway, RRB, State level competitive exam, PSC, Sub Inspector CBI exam, 10th, +2 and another exam.

### List of Trigonometry Formulas

• 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
• 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
• sin (π/2 – A) = cos A & cos (π/2 – A) = sin A
• sin (π/2 + A) = cos A & cos (π/2 + A) = – sin A
• sin (3π/2 – A)  = – cos A & cos (3π/2 – A)  = – sin A
• sin (3π/2 + A) = – cos A & cos (3π/2 + A) = sin A
• sin (π – A) = sin A &  cos (π – A) = – cos A
• sin (π + A) = – sin A & cos (π + A) = – cos A
• sin (2π – A) = – sin A & cos (2π – A) = cos A
• sin (2π + A) = sin A & cos (2π + A) = cos A