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Mathematics / Trigonometry

Mathematics / Trigonometry

Trigonometry is the branch of mathematics which deals with the measurement of sides and angles of a triangle and the problems allied with angles.

The ratios of the sides of a triangle with respect to its acute angle are called Trigonometric ratios.

Learn about the different Trigonometric ratios: sin Θ, cos Θ, tan Θ, cosec Θ, sec Θ and cot Θ.

If an equation involving trigonometric ratios of an angle is true for all the values of the angle, then the equation is called as Trigonometric identity.
Some of the trigonometric identities are:

• sin2 Θ + cos2 Θ = 1
• 1 + tan2 Θ = sec2 Θ
• 1 + cot2 Θ = cosec2 Θ      Exercises
Lessons
Topics
Exercises
Lessons
Topics
• Trigonometry and its Applications

• Questions: 10 Sine and Cosine rules - SmartTest

SmartTest on Sine and Cosine rules

• Questions: 15 Trigonometric Graphs - SmartTest

SmartTest on Trigonometric Graphs

• Questions: 15
• Trigonometry - Definitions
• Trigonometric Ratios
• Trigonometric Ratios of some Specific Angles
• Trigonometry – Area of a Tirangle
• Sine Rule
• Cosine Rules
• Sine and Cosine Graphs
• Tangent Graphs
• Trigonometric Identities
• Introduction to Trigonometry

A lesson on Introduction to Trigonometry Trigonometric ratios in terms of coordinates Application - Right angled triangle 