Introduction to Trigonometry
Trigonometry is the study of relationships between angles and sides of a triangle. It is widely use
Trigonometric Ratios
In a right-angled triangle, the primary trigonometric ratios are:
1. sin(theta) = Opposite / Hypotenuse
2. cos(theta) = Adjacent / Hypotenuse
3. tan(theta) = Opposite / Adjacent
Reciprocal identities:
4. cosec(theta) = 1/sin(theta)
5. sec(theta) = 1/cos(theta)
6. cot(theta) = 1/tan(theta)
Trigonometric Identities
Some important identities are:
1. sin^2(theta) + cos^2(theta) = 1
2. 1 + tan^2(theta) = sec^2(theta)
3. 1 + cot^2(theta) = cosec^2(theta)
Applications of Trigonometry
Trigonometry helps in finding heights and distances of various objects using angle measurements. I
Trigonometry is the study of relationships between angles and sides of a triangle. It is widely use
Trigonometric Ratios
In a right-angled triangle, the primary trigonometric ratios are:
1. sin(theta) = Opposite / Hypotenuse
2. cos(theta) = Adjacent / Hypotenuse
3. tan(theta) = Opposite / Adjacent
Reciprocal identities:
4. cosec(theta) = 1/sin(theta)
5. sec(theta) = 1/cos(theta)
6. cot(theta) = 1/tan(theta)
Trigonometric Identities
Some important identities are:
1. sin^2(theta) + cos^2(theta) = 1
2. 1 + tan^2(theta) = sec^2(theta)
3. 1 + cot^2(theta) = cosec^2(theta)
Applications of Trigonometry
Trigonometry helps in finding heights and distances of various objects using angle measurements. I
